Una GPS smart watch – Repairable, USB-C charging, developer-friendly
Posted by pimterry 6 days ago
Comments
Comment by pandemicsyn 6 days ago
If I had a dollar for every time some project that was ipx5 rated failed after getting caught in the rain one too many times...I'd have enough to buy another Garmin Fenix.
Comment by PunchyHamster 5 days ago
Comment by frankbreetz 5 days ago
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Comment by jerlam 5 days ago
If repairability is one of their selling points, not having spare parts immediately available is a big misstep.
Comment by phoghed 5 days ago
Looks like display and battery are “coming soon”, and those are the only 2 parts they have repair videos for as well.
Comment by quickthrowman 5 days ago
The watch I am wearing right now is a steel automatic that would have an IP69 rating as it’s rated to 150 meters of water depth.
Comment by peterleiser 5 days ago
Comment by whynotmaybe 5 days ago
Will the UNA hint us with a little bit of fog on the window?
Comment by aa-jv 5 days ago
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Comment by jubilanti 5 days ago
The CABLE is IP68? But the watch is IPX5? This is just up to the line of criminally deceptive false advertising. It's not criminal because the fine print, but what an absolute loss of trust. They know what they're doing. IPX5 is a no-go, which they know, which is why they're being so deceptive.
Comment by bamboozled 5 days ago
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Comment by TylerE 5 days ago
Way beyond IP5X.
Comment by microtonal 5 days ago
Note though that all these watches are water resistant, the seals degrade over time and water can get in. Even the Apple Watch Ultra, plenty of people who had it leaking after scuba dives or even after swimming.
You can usually improve longetivity by following manufacturer instructions (e.g. typically rinsing with tap water after pool or sea use, avoiding saunas/steam baths, etc.).
Comment by PlotCitizen 5 days ago
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Comment by microtonal 5 days ago
This is also why almost none of the manufacturers will fix the device under warranty when there is water damage, despite the IP rating.
Even Apple themselvers recommend against submerging and iPhone in water:
To prevent liquid damage, avoid: [...] Intentionally submerging your iPhone in water
https://support.apple.com/en-us/108039
The water resistance in these phones exist so that the phone hopefully survives when they get wet accidentally (heavy rain, pool drop, etc.). Not to shower with the phone, cleaning it by putting it under the tap, or doing underwater photography. Usually, it survives, until the seals fail.
Comment by alt227 5 days ago
So accidentally dropping the phone in a bath or toilet for a few seconds doesnt count as that?
Comment by RobotToaster 5 days ago
Comment by Melatonic 5 days ago
And of course high heat melts the glue (like hot tubs)
Comment by LaGrange 5 days ago
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Comment by prmoustache 5 days ago
The only way to find out is to find someone who bought it and asked for the source code of the OS/firmware and the schematics.
Comment by luckystarr 5 days ago
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Comment by lobster2342 5 days ago
Amazing peace of Hardware.
Also their algorithms are cool. If the watch tells me to rest more than 24 hours, I know, I will be tired the next day.
The two features that I miss are built in heartrate monitor and temperature sensor. I payed around 500€ back then. Over the years I use this watch, the price became very reasonable.
Comment by sandworm101 5 days ago
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Comment by cyberax 5 days ago
It doesn't have all the Garmin features, but it's free and I don't have to worry about it's software getting redesigned.
Comment by microtonal 5 days ago
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Comment by microtonal 5 days ago
I'm now usually taking the Coros Nomad because it has super-fast maps and still a battery life of three weeks.
They are really great otherwise and I love my Coros Nomad and Garmin Fenix so much more than the Apple Watch Ultra.
Comment by _giorgio_ 5 days ago
Comment by dspillett 5 days ago
Also, not everyone with a GPS watch cares that much about heart rate. I am a runner (well, less so now that I used to be, but working on fixing that) and have a Feninx7, not for the health tracking features but for route tracking and the long battery life (for “ultra” events covering many hours or even multiple days).
Comment by _giorgio_ 3 days ago
Comment by roryirvine 5 days ago
Seems to me that "still working well after more than a decade of use" is a more useful piece of info than "newer models include additional features".
Comment by _giorgio_ 3 days ago
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Comment by the_real_cher 5 days ago
it has an insane number of features
Comment by microtonal 5 days ago
Comment by the_real_cher 4 days ago
How's the accuracy on the Coros watches?
Comment by microtonal 3 days ago
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Comment by lrae 5 days ago
I see a single unboxing of the watch from three weeks ago on Youtube and zero reviews on YT or websites. Just posts based on their PR release that it's available now. (Though some clearly already shipped.)
Thus, it's unfortunately very likely that the product is also not good at its main purpose, tracking activities, workouts and health. If it would only even come somewhat close to the performance of all the competitor smartwatches/trackers, they'd be louder about that part.
Comment by LeifCarrotson 5 days ago
https://www.kickstarter.com/projects/unawatch/meet-una-the-m...
so it's been out for less than a month. That's why you've seen zero reviews on websites, it's an indie Kickstarter. They don't have the marketing budget of a big wearables brand.
It has a GPS, IMU, and heart rate sensor: That's enough, obviously, to track activities, workouts, and health which their competitors do with the exact same set of sensors. It remains to be seen how accurate those are, or how well the manufacturer and community can develop useful algorithms to turn raw sensor data into activity logs and actionable health insights, but step 1 is to release an MVP to get people wearing the watch and logging data, and step 2 is to use the data to improve the algorithms.
Comment by microtonal 5 days ago
Comment by abstract_put 4 days ago
Comment by abstract_put 4 days ago
The hardware seems top quality (looking past the waterproofing concerns, don't love that). On first blush it seems like its in the same league as my Garmin Fenix 6 Pro for tracking though, with obviously way fewer features at this point. I intend to do a side-by-side with the Fenix 6 and a heart rate strap to compare HR and GPS to see how it shakes out under tree cover and bouncing around, but the hardware seems up for it.
Comment by slibhb 6 days ago
> UNA is currently a non-submersible device due to its innovative modular design. So, swimming is not something we offer as an activity, nor do we advise it. UNA is IPX5 rated, which means it is splash & showerproof to a high degree.
Comment by pockybum522 5 days ago
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Comment by arnejenssen 5 days ago
I guess it would be possible to reverse engineer a similar stress level calculation. Perhaps AI-powered?
Comment by scheme271 5 days ago
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Comment by mikestew 5 days ago
Not that I put a whole lot of weight in those data personally.
Comment by catigula 5 days ago
Garmin has absolutely shitty sleep tracking but it doesn't matter; any wearable more or less nowadays can get static heart rate correct, leading to more or less accurate recovery metrics.
"Collect every paper you can find on RHR/HRV/etc. recovery metrics. Develop an algorithm for predicting recovery score per day based on the research" as a prompt to a Codex or Claude agent can probably get you 98-100% of the way there.
Edit: As a proof of concept, I had ChatGPT Pro 5.6 write the algorithm with my Fitbit data. Looks great.
Comment by patrickk 5 days ago
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Comment by patrickk 4 days ago
I’ve had Claude work on a body battery type solution, which I’ll fully deploy over the coming days. It’s to manage and track brain fog/long COVID type symptoms and see if there’s correlation between foods eaten the day prior, resting heart rate etc and perceived brain fog. I’ll see if it’s possible to incorporate some of your work into my solution too.
Comment by catigula 4 days ago
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Comment by LeifCarrotson 5 days ago
My body battery and stress often starts declining for no apparent reason and then 12-24 hours later I feel the symptoms of an illness. Similarly, when in a tough training block, HRV is a great tool to gauge how hard I ought to be able to go: I've tried to push through and just do a tough workout anyways when it's out of range, but failed to complete the workout in good form, or felt superficially crappy but had good training readiness according to the watch and was able to do better than expected.
The same holds true in the other direction, I don't log into Connect or scroll through the multitudinous widgets of data often enough to really keep tabs on this stuff, and when I get sick or feel good or bomb a workout or succeed at a workout when I felt off, the metrics consistently back up the actual results.
Personally, I've been thinking about jumping ship to a Coros Apex 4 if my battered Fenix 6 ever gives up the ghost - Garmin's prices are insane these days. At $270, this is cheap enough in comparison to a $1200 Fenix 8 Pro to take the chance. I could buy this and a $480 Apex 4, and then decide I didn't like either of them and go back to a used Forerunner 955, before spending as much as a new top-end Garmin.
Comment by Melatonic 5 days ago
The newest watches seem insanely priced though and don't seem to add much. But the newest Enduro with decent solar is tempting
Comment by ck2 5 days ago
and post-2020 Garmin has totally lost their way with development/algorithms
Comment by elric 5 days ago
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Comment by Melatonic 5 days ago
What might be cool for a version 2:
1. Custom hardshell "door" to cover the USB-C port. Something that cannot fall off the watch. The port itself could be well sealed like a phone and then have this additional layer of physical protection.
2. Wireless charging of some type (or even add pogo pin as well). Would be nice to top up charge without having to expose the USB-C and probably increase the plug life. Does this require a glass back? Because obviously that would not be ideal in a watch.
3. Better waterproofing. I dont personally use my Garmin for swimming often but would be nice to not have to worry about it.
Anybody know about the battery life in real world use?
Comment by hackingonempty 5 days ago
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Comment by znpy 5 days ago
Might this be it?
Comment by kittikitti 5 days ago
On a more social side, I find that people are more frustrated if I don't immediately reply when they know I have a smartwatch. While I understand that these watches make it easier to stay notified, I find it annoying to have more expectations in return. I still have plausible deniability with smartwatches similar to the Una watch. Otherwise, the toxicity of the technology is significantly greater.
Comment by jhoechtl 5 days ago
Comment by m463 5 days ago
Just put it on your wrist.
You CAN decide to use garmin-connect for apps/updates or pair it with your phone, but I never have and I'm fine.
Apple watch and others require activation.
Comment by RedShift1 5 days ago
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Comment by belval 5 days ago
It's been a fragile piece of hardware, I am on my 3rd one in as many years (always replaced under warranty though), but I still probably wouldn't switch to anything else. When it breaks out of warranty I'll just buy another one.
Comment by exabrial 5 days ago
My Garmin Epix watch is practically bullet proof. I've dove with it in open ocean. I've jet skied with it. I rock climb with it. It's surived 108miles of Unbound (the race) in mud, sun, sweat. I've water rafted with it. I've swam in crappy lakes, streams and jumped off cliffs. Hottubs? also no problem.
Zero chance a iWatch would ever survive these conditions.
Oh and despite all of this, the screen has not scratched, not even a little. Plus it has 5-10 days of battery life... and did I mention I always have a flashlight on me?
Comment by mikestew 5 days ago
Mine survives such things just fine.
My Garmin Epix watch is practically bullet proof.
And your Epix cost about twice as much as the Una watch does.
Comment by exabrial 5 days ago
And iWatch doesn't have a flashlight. And iWatch doesn't have the same battery life.
Comment by mikestew 4 days ago
As for the "iWatch"<sic>, well, if you haven't researched enough to get the product names right, maybe it's best we move on with our day.
Comment by notesinthefield 5 days ago
I believe this the least!
Comment by lrae 5 days ago
I also don't see why an Apple Watch wouldn't survive all those mentioned things. Pretty sure I did all those things with an Apple Watch on, except for the specific 108 mile gravel race. But I don't see why it would fail that.
And both might absolutely scratch while climbing, and if you're unlucky and hit it in the wrong spot, also crack.
That said, if I were an athlete in any of those categories and did it all the time, I'd still absolutely choose a Garmin.
Comment by exabrial 5 days ago
Negative, just the iWatch. I'm scratch free despite outdoor climbing on limestone, sandstone, and granite.
I do take it off for crack climbing since it's a safety hazard.
Comment by gwill 5 days ago
Comment by lrae 5 days ago
But, Apple Watch Ultras and also Titanium models since Series 6? ship with Sapphire crystal too.
Comment by notesinthefield 5 days ago
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Comment by iancarroll 5 days ago
I wonder what HR sensor they use. Samsung apparently has an average error of 7% which is pretty bad, so I wonder if this would be worse. [0]
[0] https://www.cnet.com/tech/mobile/i-ran-30-miles-testing-5-sm...
Comment by deivid 5 days ago
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Comment by LeifCarrotson 5 days ago
My Fenix 6 Pro has a 47mm face, is 14.7mm thick, and weighs 80g (but as a Fenix that's the stainless bezel one, the plastic bezel watches are closer to 50g).
Comment by m463 5 days ago
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Comment by mikestew 6 days ago
USB-C charging would be awesome, instead of Garmin's proprietary plug and a cable that's made from spider silk. I'd prefer, though, wireless charging like Apple. Never once have I pulled an Apple Watch off a charger and said, "WTF? Why didn't it charge?" Garmin, OTOH...
I'm no triathlete, but the "no swimming" kinda puts a damper on my enthusiasm as well.
I wish them well, I love the idea even if I probably won't buy one.
Comment by throwway120385 6 days ago
Comment by weakfish 5 days ago
Apple certainly doesn't let you.
My goal is to have a cron that runs on my homelab that pulls my health data into a DB I own, from various sources, and visualize it in Grafana.
Comment by mikestew 5 days ago
There are several apps[0] off the top of my head that pull data from Apple's HealthKit. Apple even has a framework for it: HealthKit. That said, I've never written to that API myself, but it observational evidence indicates that you can pull data from Apple just fine. The app I use to pull data off Apple and ship to Strava says as much.
[0] RunGap and HealthFit
Comment by weakfish 4 days ago
Unless I'm missing something and HealthKit does provide this.
Comment by mikestew 3 days ago
Too bad Garmin turned into buttholes about their API. It used to be a lot easier to deal with.
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Comment by mikestew 5 days ago
Whereas I throw my Apple Watch in the general vicinity of the magnetic charger, it locks into place, and charges just fine, 100% of the time. Fine, don't use induction like Apple, use two exposed, flush pins and a magnet like my Coros armband HR monitor, because that works 100% of the time, too.
Comment by tamimio 5 days ago
Also, any watch right now should be waterproof, it won’t survive otherwise.
Comment by nosrepa 5 days ago
Comment by ajnin 5 days ago
void TrackFaceTotal::setDistance(float dist, bool isImperial);
void TrackFaceOverview::setPace(float pace);
and bool unitsImperial;
littered everywhere, it makes my heart sink a little. Can't we have some data types and data modeling in 2026 please ? And leave unit conversion at the front end where it should be and not have to worry about it in every single core API ?Comment by LeifCarrotson 5 days ago
Be grateful it's C++, it could be raw C.
Comment by abstract_put 3 days ago
That said, while I think you picked an example that undermines your point, the point does still stand. The SDK has a lot of rough edges (just not this specific one).
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Comment by briffle 6 days ago
But a watch, something people will wear swimming, sweaty, in the rain, etc, is something that should ideally follow the wireless charging standards, and not have a plug taking up space, and being a spot for leaks...
Comment by SketchySeaBeast 4 days ago
Comment by Raed667 5 days ago
But IPX5 is definitely a show stopper for my kind of usage
Comment by jagermo 5 days ago
i love the repairability but it should be a usable watch as well.
Comment by cyberax 5 days ago
Round watches are bad. A circle is the worst shape for watches. Good watches are not round. Roundness is an anti-feature.
Really. Just use a rounded rectangle shape. It will end up _smaller_.
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Comment by aleph_minus_one 5 days ago
I doubt that modern smart phones are waterproof. Who would trust use their smartphone while showering or being in a bathtube (including submerging the smartphone a few centimeters into the water)?
Comment by vel0city 5 days ago
I remember when the iPhone 7 had just come out (the first waterproof iPhone), a friend bought one and then went on a cruise. On a shore excursion he was at the docks and saw some cool fish. He dunked his phone in the water to take some cool photos. Everyone looked at him like he was a mad man, dunking his iPhone in the water just to take some pictures.
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Comment by gbil 5 days ago
Very valiant first effort for sure but after 6 years with a Garmin Fenix still holding 90% of its battery (and being able to replace it), I'm not their potential customer.
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Comment by TMWNN 5 days ago
What kind of battery life did you have when you bought it, and how long is it now?
Does Garmin still upgrade the firmware?
Comment by jerlam 5 days ago
But you'd be a fool to believe a hardware startup would do so anyway.
Comment by gbil 5 days ago
Good thing with the Fenix line is that you stop the updates which I did a year in so I don't really care about them, but I do think they stopped firmware updates for the 6series about a year ago.
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Comment by aleph_minus_one 5 days ago
I by now often see the term "surveillance capitalists"/"surveillance capitalism" on HN.
While it is a great thing to fight surveillance organizations, don't forget that communist countries had/have (for the latter: People's Republic of China) much worse surveillance in place.
Comment by tmgldn 5 days ago
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https://commandlinux.com/statistics/developer-os-preference-...
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Comment by 1970-01-01 5 days ago
>Gone are the days of brand specific charging cables.
Returned are the days of worn-out, broken ports and searching for another charging cable.
Comment by tomhow 5 days ago
So it’s an important differentiator from Garmin, which uses a proprietary connector for its charging cable, that is easy to lose/break and expensive to replace (from personal experience with a 2022 Epix).
Comment by LeifCarrotson 5 days ago
Yeah, if you only use the stock Garmin cable (why isn't it at least right-angle?!) it kinda sucks, but there are lots of products that do it really well:
https://www.amazon.com/dp/B0F5L632HM
https://www.amazon.com/dp/B0D4F71WQC
https://www.amazon.com/dp/B07N18DX6Y
I would much rather these totally waterproof surface-level pads that put the spring pogo pins in the cable than give up internal device volume to a USB receptacle or magnetic charging coils.
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