1. connection protocols are part of the spec on both the head unit and the accessories. you have to see if the head unit supports accessories of that type (say, hub mounted speed sensor) and if the protocol works (say, ANT+)
2. either/or. I get phone calls and texts on mine if I allow it. not all necessarily would, check the specs
3. the device has to be paired with a supported app and you have to start/end the ride from the device. once that's set, in generally it "just werx"
4. this one is a can of worms, but in general stand-alone HRM sensors (chest or wrist) that do only HRM are going to be the most painless, any multi-function device like a smart watch or a phone may or may not work, and may or may not require a bunch of crazy hacks
5. personally I'm not into that stuff but some are, sure
6. my opinion is that if you ride ore than once or twice a week it's well worth it, sure you can try to use your phone for everything but a head unit is so much nicer and also easier on your batteries
7. probably not, I used to ride with a turtle and it never seemed bothered by it. I wouldn't ride with an antique watch like a pre-diashock seikosha or your brand new GS koda remontoire, but skx is a modern simple movement that shouldn't be bothered by it

>>2039903
>>do the bike computer accessories (cadence, speed, HR) connect to it, or to the phone
yes, but you should check the compatibility from the manufacturer.
>>does only the bike computer connect to your phone and stay connected constantly, or only to transfer data to strava or an app once the ride finishes?
I have this model and I just connect the computer after each ride to upload it to their app and then it syncs with strava
>>can I just get on my bike and ride, and the bike computer will then automatically upload my ride to strava once I am done?
yes, see above
>>can I still use my xiaomi band 9 to measure my HR? will I be able to see my HR on the screen? or the bike computer only connects to HR sensors and not other "smart" devices
it depends on the bike computer, but this model allows you to connect to HR monitors. I use my garmin forerunner to broadcast heart rate to the xoss and it detects it no problem.
>>should I get a bike computer with an actual screen to show maps/route?
it would be very helpful and convenient. This model is very basic and you can't change which data is being displayed on which screen layout (this one has 3)
>>should I even get a bike computer to begin with, I am riding actual gravel and trails, basically exploring my region on weekends and driving 2-3 times to work a week, will the sensors and shit survive the rough terrain?
It depends on the model and rating but I've used this one during heavy rain and it has survived. It also got banged up when my bike fell but it only broke off the retaining locks. Still works. It depends on what you want a computer for and if the data you really want the data it will give you.
no idea on the last question.
Btw, this model isn't as accurate when it comes to % gradients if you're looking for that. It is very basic and limited but it does the job for what I was looking for at the time.

Check out igpsport if you want customizable screens and data display (it's also very cheap)

>>2039958
wait, I have the old version (G plus) not this one. Ignore what I said about model specific stuff.

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>>2039903
>Mogs your bike computer

>>2039961
You left out the external battery pack since using it for a computer will drain the battery in like 2 hours

>implying people who use phones for bike computers would ever even ride a bike for 2 hours

>>2039961
>destroys your camera
>is illegible during sunlight
>has no battery

bike computers feel like something completely unnecessary these days. Unless you just don't want to put your smartphone on your bars or think it's too big / bulky (they're not unless you have a giant phone), it's just an waste of money.
Strava tracks everything I do anyways, just open the app put my phone on my mount and ride.

I'm bringing my phone with me no matter what when I ride anyways.

>>2039987
>>2039962
wtf are you people even talking about.

I ride all the time over 3+ hours with my phone as a "bike computer" and never have any issues with battery or anything, what kind of shit phone are you guys using?

>>2040025
an expensive phone that I'd rather use as a phone and not as a shitty replacement for basic parts that aren't expensive and do a better job, I do respect you doordash guys though you work hard and it's a dangerous line of work to be in

>>2040025
Other anon is right, it takes time (anywhere from months to years, depends on a lot) but it's real. The two main things I hear all the time from phone mount users is the focus mechanism failing and battery failure.

>>2039962
wat? everyone has OLED screen.

>>2040032
how the fuck do you navigate?

>>2039987
I've been riding for like a year with my phone that has OIS and my camera is fine
modern screens are super bright unless you're using some LCD shit
battery lasts forever.

>>2039903
1) Either. You can connect most of the bike sensors you find on aliexpress to your phone via Bluetooth, and use a free app like OpenTracks or Strava.
2&3) Depends on the model. For most models you connect the bike computer with your phone using an app, and you have to use the app to upload or download data. Not sure which models download the data and upload it automatically, check the model's data sheet.
4) Unlikely. See if you can install the HR2VP app on your watch (it must use WatchOS).
5) YES! lol. I bought an IGPSport BSC200 for $35. While it does almost everything I need, maps and routing are a great function to have, and the cheapest unit to do it is the Magene c506 for $120.
6)No! I first bought the bike sensors and paired them to my phone. However, I liked the idea of having a bike computer due to the longer battery, and saving the battery on my phone. The sensors are plenty tough.

Maybe this is a good thread to ask...

I got back into mountain biking recently and perhaps looking for a cockpit computer. ALL I want is a live GPS map that approximately guides my way. No need for anything else. No gimmicks. The map should be the main emphasis in terms of quality.

Is there something that just works for the purpose without much fiddling around?

>>2040023
>I'm bringing my phone with me no matter what when I ride anyways.
I haven't carried any kind of phone with me since the mid 2000s. I've been considering to get a nice compass and do the old school paper map thing. It has a wonderful feel to it.

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I feel like these expensive, GPS-integrated, wireless ones are actually the opposite of what a bike computer should be.
Picrel was $20, takes one battery, and gives speed/distance/time. If you're fancy, then you get the one with a second, wired sensor for cadence. Never needs to leave the handle bars other than to change the battery once in 18 months.
If you need directions, stop and take out your phone. But you don't need your phone on your handlebars.

>>2040927
The magene c506 is the cheapest bike computer that has map navigation.

>>2041180
the problem with those things is they get fucked up by those car detector things at stop lights

>>2041218
>show magene

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>>2041180
Contribute a USD$3 (they do get that cheap, shipped through Aliexpress) speedo install on my scooter. Works, the small diameter programmed in with no problem and it fits and signals pic related. Needed a wire extension however with somewhat tricky soldering. I did this more for odo than speedo. One thing I don't like the battery is an AG10 which is tiny - I feel its going to materially affect utility.

>ywn buy random chinese shit from ali express again
feels bad man

I recommend getting an igp sports bike computer ie. bsc100 for basic, bsc200 for nav and basic or the bsc300 for a full bike nav computer with all the fancy flares. They got cadence and speed meters you can strap on too. You can get all of em extremely cheap, especially during sales like Black friday, christmas, 11/11 and stack global aliexpress coupons on top.

>>2040025
>over 3+ hours
cute

>>2049671
the problem with the magnet sensors is they go crazy when you're at a red light with the vehicle sensor loop thingies

I don't understand the point of bike computers other than flexing on other freds and at that point you may as well do so using your 1800$ googlel phone and a subscription based gps speedometer app

>>2056737
>why would anyone want to know if they're going to get to work on time
t. NEET

>>2056739
are americans truly so inept that they need a "bike computer" to estimate how long it'll take them to get somewhere

>>2056743
Getting somewhere with muscles alone means your trip time can vary by up to 10 minutes on a 15 mile commute, depending on wind conditions and what you ate that morning and other factors, understandable that you wouldn't get it though since you have never needed to get anywhere on time

>>2056744
>vary by up to 10 minutes
>on a 15 mile commute
lol

>>2056746
In fact that's a conservative estimate. A 5mph headwind can add 10 minutes if you pedal at the same wattage. So plus or minus 5mph means a 10mph difference, I assume you can do the math since you're clearly such a smart guy

>>2056748
>In fact that's a conservative estimate
lmao even

>>2056750
Sorry you can't do the math, but it's 45 watts vs 128 watts to maintain the same speed

>>2056746
i commute 19 miles (one way) a couple times a week and I can confirm his numbers. I don't use my bike computer for arrival estimates tho

>>2056737
>I don't understand the point of something that does a job perfectly for $100 when you can get a device that does it much worse for $1800

>>2058206
unracers will gladly spend 10x more money for something that does the job 10x worse if it lets them pwn the freds, bike culture on the internet is surrealist comedy horror now that subject matter expertise is illegal wokeness and being performatively stupid is the only way to stay employed anymore

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op here I got the xoss from the first pic but with the new "arena" sensors

idk what the fuck is going on
connected the computer to my phone
i then connected the sensors to my phone to set them one for speed one for cadance
then I connected computer to sensors (1 sensor in other end of my house to not fuck with it)
next day went on ride, everything worked
day after that cadance didnt work so I opened app and both sensors were connected, I then connected computer to one of the sensors (no idea which) and everything worked
today I thought cadance didnt work, but I was in a rush so I said fuck it
when I got home none of the sensors were connected to the app, so I "forgot" them from app, took off wheel with the speed sensor and moved it away, tried to connect computer to cadance, didnt work, so I connected cadance to phone (said battery is very low on app), then I connected the computer to cadance
then I took computer to the wheel and connected the computer directly to speed sensor
and it seemed to work, but it was pitch black so I only tested it in my retarded driveway

>mfw trying to figure out what connects to what

Ok, I am here, now what?

>>2058206
the point of that post was that the point of the "bike computer" is to flex on poorfags, and if the point is to flex on poorfags, just use an iPhone™

and really, if you need fitness info, just get a fitbit, and if you need to know your exact speed, that can be achieved by gps and there's free phone apps for it (and you can get dedicated units like for sticking on tractors or w/e)

>>2061181
I can tell you've never used a bike with a properly set up bike computer. Using the GPS app is fine if you want to see, approximately, what roads you took in what order, after the ride, so long as those roads weren't too close together and so long as they were completely flat and in a grid pattern. Or what was your average speed, over a significant distance, as long as the default built in error correcting heuristic works reasonably well for your circumstances. It's shit for seeing how fast you're going NOW, and half the time it's not even tracking correctly unless you live in the netherlands where there's no terrain, tunnels, or buildings.

>>2061193
It's a poorfag casual.

Also love the part where anon wants me to "just" buy a shitty $100 fitness watch to pair with my $1800 phone so I can get an extremely shitty, ergonomically compromised, inaccurate approximation of something I can do flawlessly for $100 is for "flexing on poorfags", unracer logic strikes again

>>2061193
>It's shit for seeing how fast you're going NOW,
you don't need a "computer" for that, they have had bike speedometers at the fucking dollar store for 25 years

I use a Meta Quest and six 4k cameras I hooked up to an SBC in my pannier to provide me realtime full telemetry of all my Bicycle's systems and subsystems and those subsystems' subsystems, overlaid on a 360 degree view around me projected into the headset. I have complete and total information and domination over the roadspace. Everything from the ambient temperature to the exact tension of each spoke is projected in front of me on an AR display. A real cyclist would settle for nothing less. It would be literally impossible to guesstimate how long it would take me to bike to work otherwise.

I absolutely REFUSE to use a magnet based speedometer, however. That is simply too much weight and even my 870k TC job in Sillicon Valley doesn't pay well enough that I would throw so much money away on such a horrific, byzantine, overpriced system.

Fixie Nation btw.

>>2061199
Oh ok so let me get this straight, I can "just":

-Buy an old timey analog bike speedo with the spoke magnet that goes crazy and displays 99.9 mph when my headlight is turned on or when I'm crossing near to a traffic sensor induction loop like they have at most intersections
-Also buy a fitbit that costs more than an inexpensive head unit so I can wait until after the ride to check how fast my heart was beating an hour ago
-Fuck up my iphone battery to do a shitty job at recording my ride so I can look at it later for some reason

Any other bike advice? Because this is some genius level shit so far

>>2061203
>be stopped at a light, feet on the ground
>AIEEEEE HOW CAN I POSSIBLY KNOW HOW FAST IM GOING!?!??!?!?!?!?!
>feel sweaty
>AIEEEEE HOW CAN I POSSIBLY KNOW IF I AM EXERCISING!?!??!?!?!?!?!
>simply biking to commute
>AIEEEEE HOW CAN I POSSIBLY KNOW IF I WILL GET THERE ON TIME!?!??!?!?!?!?!
>participating in a track event
>AIEEEEE HOW CAN I POSSIBLY KNOW WHEN I HAVE COMPLETED THE EVENT!?!??!?!?!?!?!

idk why you even need to know in the first place, fitbits are a meme too. you're only buying a "cycling computer" for the larp, admit it

>>2061201
Magnet systems became obsolete once bike headlights went from halogen to LED, so if you're doing what the unracer suggests you would need to replace your headlights with antique headlights from back when you had to carry a big ass lead acid battery pack in your water bottle cage to have decent lighting

>>2061204
How do you manage to get this angry at the idea of a well designed tool built for a use case that doesn't align with your own personal needs?

>>2061205
>Magnet systems became obsolete once bike headlights went from halogen to LED
explain how lower voltage lower amperage devices that are entirely enclosed with their battery create more RF interference than a higher voltage device with lines running elsewhere

It is literally impossible to tell your current speed by using GPS. It has never been done before because it is physically impossible. Sorry that science demands you be sad. You lose, moron.

>painstakingly calculate how fast I went over an entire trip by checking google maps on my iPhone and using a ruler and compass and shit to measure it like a fucking caveman
>instead of just getting a proper cycling computer that can tell you your exact speed at any moment without having to rewire your headlights and replace all your cables
Where do these retards come from?

>>2061208
Are you asking because you think I'm an electrician, or because you think I'm making stuff up?

https://www.google.com/search?q=bike+computer+interference+light

I'm not an electrician but there's probably a few in the hundreds of forum discussions on this topic

>>2061211
Because it's 4chan, where intentionally doing everything in the stupidest way possible makes you very smug about how smart you are, for what reason no one knows

>>2061212
>le just google it BRO
yeah im sure retards on boomer cycling forums are all experts on RF theory and your 0.5w LED light is a fucking electromagnet. make sure to never turn on the lights in your basement, your computer might crash!!

>>2061216
As I understand it, the magnet sensor sends a simple blip to a receiver on the head unit, and the light or its circuitry creates blips at a high frequency that's close enough to the frequency used by the blippy thing, but if layperson terminology upsets you, that's a you problem, since you're too obstinate to click on a link I made for you

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Like do you really think it takes an electrical engineering degree to see that your computer stops working when the headlight is switched on? Do you think it was a mass hallucination on the part of boomers?

Someone even made a youtube since some people are scared of words

https://www.youtube.com/watch?v=OsJ3I_Z6n-8

>>2061218
boomers are terrified of "spurious transmissions" so yes, it's lead-huffing retards getting into hysterics because bluetooth dropped for a second. Blame the old FCC "this device may cause and must accept interference" stickers.

Someone call the military, we solved the drone problem forever. Just turn a flashlight on nearby, it destroys all radios for miles

The cycling computer that came with my shitty e-bike kit has an integrated light. Will I die?

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>>2061222
>>2061221
>>2061222
If you bothered to read any of the discussions, or refer back to the original post on the topic ITT >>2061205, you would have seen that more modern bike computers that use GPS are unaffected by this issue, it's specifically the combination of LED headlight and old timey head units that use the magnets. If the military uses drones that are completely dependent on an anachronistic mechanism for measuring bicycle wheel rotations then yeah, there'd probably be an issue. But I'm not a drone expert, I just know when my bike computer is working and not working.

my pc bluescreens every time someone parks their car outside, life is rough for us computer lovers

>>2061224
have you considered moving either the light or the computer, or possibly even the magnet, or getting a light that isn't apparently full of electromagnets

>>2061223
That's impossible. You're lying. That's just not possible.

>>2061228
I tried a lot of things, eventually that particular speedo head unit got damaged due to an unscheduled altercation with a motor vehicle and I got a modern wahoo head unit that uses whatever wahoo uses. ant+ I guess. you're the electronics expert, presumably you know what that means.

>>2061230
it's a proprietary standard by one of the faggier consortia so gg your computer works now because instead of "count the wheel spins" it needs 300mbps and to fuck up the 2ghz spectrum even more to do what was achievable with an encoder wheel and a photoresistor 50 years ago

>>2061224
>"""""""modern""""""" bike computers that use GPS are unaffected by this issue,
Tracking speed by GPS is so fucking slow you may as well use a paper map. Only retarded niggers like >>2061181 would ever propose something so stupid.

>gps
Yes, let me just do my entire ride, then open up a map and use a compass to calculate how long it really was, then I can do some complicated math to determine how fast I might have gone.

Or I can get a real cycling computer that uses specialized sensors ot tell me exactly how fast I'm going in that single picosecond.

You can't just use a GPS as a speedometer, that's not how it works.

>>2056748
damn dude you must be built like a sail, you just fly away instantly whenever there's a gust of wind?

If your bike has even a single wire on it you are a faggot. Every sensor is wireless. Even my brakes and shifters are wireless. I had to give up having a headlamp, but it was worth it.

>>2061233
oh no, not the 2ghz spectrum! I thought interference was boomer mass hysteria

>>2061234
it's not the GPS aspect that makes it immune, it's the wheel sensor signal, the GPS just happens to be part of the suite of modern advantages you get when you stop being a stubborn retard trying to use antique technology to impress unracers

>>2061236
https://silca.cc/pages/power-calc

I used 175 pounds as total rider + bike weight, but assuming you're a hamplanet you can adjust the watts difference by about 20%

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what the fuck is going on, it was a mistake bumping this thread

>>2061253
You can't use GPS to measure speed.

>>2061206
Hes explaining that it doesn't align with your needs and your imagining scenarios in which you are a high performance athlete and or just a "cool guy". essentially your coming off as a retard

>>2061253
>oh no, not the 2ghz spectrum! I thought interference was boomer mass hysteria
nta but your an actual idiot, hes complaining about needless overcomplication in specs.

>>2039903
is there a kind of device that just mirrors your phone screen for navigation? i don't need any of the other stuff

>>2061203
>>2061205
>>2061224
I still use >>2041180 and this problem is completely non-existent. Neither the LED lights nor the traffic sensors do shit.
I dunno what FREDs on bike forums are saying, but they should probably clarify the specific the models they are using, since it's clearly not a universal phenomenon that only $1000 GPS devices can fix.

>>2061289
the DisplayLink people want to make it happen but i've never seen a direct USB-C to DisplayPort cable in the wild

but if you can find one, a battery to run the monitor, and of course the monitor itself, sure

>>2061289
realistically not really since the typical >USE CASE is to mirror something else to your phone, your phone already has a display and can be put in a protective case to be used as a ghetto head unit.

i would just look into those oldschool car GPS units, or just pick up a rasppi and a few "hats" to rig something up (it's easy these days, they literally just run linux and if even that is too hard there's Windows 10 IoT)

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>>2061323
>windows on a bicycle
>can't know how fast I'm going because Something Is Happening... and then Something Went Wrong :(
>becomes a brick as soon as I turn on my flashlight because Bill Gates doesn't know what interference is
Thank you microshart, very cool.

>>2061323
Yeah dude let me just carry an entire fucking server on my bicycle.

My EDC PCC is a sequential coilgun and I've never had a problem with it wiping my bike computer.

>>2061323
>>2061322
what i need is a small display that just works out of the box, connects to my phone and mirrors the screen. surely there has to be something like that on the market, i can't be the only one

why should I use one over just using my phone and an app? I mean my phone already has GPS, and bluetooth and I can connect all my other shit to it anyways

I have to bring my phone with me when I ride anyways

>>2061660
A head unit is a small, robust unit made to go on your handlebars that doesn't require much power, has an interface designed to be simply and easy to use when you're tired and sweaty, and if it falls off your bars or gets lost in a ditch because you crashed, it's far less problematic to replace than if the same thing happens to your primary smartphone.

>>2061287
I hope you're ESL because otherwise how embarrassing for you

>>2061656
>what I need is 90mbs of streamcasting battery rape smart phone garbage instead of just having a $9 GPS module and a $2.50 display and a $0.25 plastic case to do things the right way because somehow the first option is "stickin' it to the man" and the second option is fred boomer mass hysteria
What kind of early childhood trauma causes this?

This thread reminds me of those /biz/ threads where eurolards pretend(?) to not understand the concept of the "credit card"

>>2061664
Imagine being so fucking stupid you think you can use GPS to measure Speed. Have fun carrying an entire data center on your back for the AI power it would take to calculate that and still be wrong.

https://www.princessauto.com/fr_CA/indicateur-intelligent-par-gps-obd-plus/product/PA0009465543

>>2061667
I invite you to use a GPS-only speedometer on your next mountain ride and then try to explain to me why it's "fine". Of course you won't, because you don't ride, but we both knew that didn't we

i dont measure my speed on my bike, i just try to either match traffic or go faster if i want to or slower if i feel unsafe

>>2061662
that's not what i typed at all anon

>>2061704
How do you propose to continuously mirror your smart phone display on a separate device, just to display a couple of data points that you're using your entire phone as a capture device, with better energy efficiency than just using independent dedicated hardware that only has to do those data points and nothing else? How does that make ANY sense?

>>2061711
>independent dedicated hardware that only has to do those data points and nothing else?
like what? i'm not aware of any devices that run navigation as easily as phone apps. i'm used to being able to use google maps on the fly without needing to download routes ahead of time and such, like is needed with bike computers.

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Does anyone know if Garmins have some kind of "tour distance" field? Basically I want it to start counting how much I've ridden and stop when I tell it to, without resetting at the end of a ride.
I remember wired computers from the 90s had this functionality and I can't find it here. I could record the whole tour as a single ride and use laps for days, but then if it crashes I lose all the data.

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>>2061712
well ok if you really must have a car-dashboard-size moving map display with 7680x4320 resolution to run waze, then, maybe, a phone in your pocket with a 5g sim, slaved to a handlebar mount screencast device could do the trick, though even then, a dedicated device makes far more sense given the size and energy requirements of a head unit. so you're still not getting around the fact that a purpose-built tool is going to be better suited to this than any smart phone plus display mirroring solution ever could be

I can tell you that in 5+ years of owning the same fred hysteria "flexing on poors" head unit designed for actual bikes, I've needed to re-download maps exactly once, and that was when I took my head unit to another continent (I live in 'merica) and the thousands of square miles of local-to-me maps I downloaded on day 1 of fred hysteria weren't pre-saved. I am not sure why it occurred to me to do that before getting on the plane but I'm glad I did because imagine being in a backwards country like france or switzerland, where they don't have wifi or cell service yet, right? I mean everyone except me lives in mud huts and chucks spears at each other and has a penis gourd, MURICA #1 MAGA MAHA THEY HATE US CUZ THEY AINT US

but I suppose if you're some kind of superhuman ultra-distance cyclist who can cover thousands of miles a day without stopping *and* you have the short term planning skills of a russet potato, then the limited onboard memory only capable of storing new england, the mid-atlantic, plus some of the eastern midwest might present a problem because what if you reach your hotel that night and forget that you have moved 6 states over and you didn't expect to be there for some reason and on top of that you have no access to wireless data of any kind, what then? then people like me would really feel dumb huh

>>2061662
>I hope you're ESL because otherwise how embarrassing for you
your not nearly as intelligent as you assume you are.