Editor’s note, March 4, 2025: We have actually upgraded our rating for the OnePlus Watch 3 from 8.5 to 8.8 to mirror that OnePlus expanded its Put on OS upgrade cycle to 3 years of software application and safety updates, with assistance lasting till 2027 with Put on OS 7.
In my 10-plus years of screening smartwatches, I have actually never ever needed to proactively attempt to drain pipes a battery. That altered when I strapped on the$330 OnePlus Watch 3″ target=”_blank 5 days right into my battery examination, after billing it to 100%, this watch was still going solid; tracking my rest, runs and vitals without missing out on a beat.
I’ll confess that the Watch 3 really did not make one of the most beneficial impression, with its plainly manly layout and extra-large display that virtually engulfed my normal-size wrist. I half-expected to create it off as simply one more midrange smartwatch predestined to gather dirt in a cabinet. However it ends up, I agree to neglect a couple of points like the dimension and absence of ECG performance for phenomenal battery life.
OnePlus Watch 3
4 years after its shaky debut, OnePlus’ underdog smartwatch has actually developed right into a real rival to Samsung and Pixel watches, providing the very best battery life I have actually ever before evaluated on a Put on OS tool– all while packaging strong health and wellness functions right into a restrained and classy (albeit huge) layout.
Battery life takes spotlight

It took control of 5 days for me to see this turn up on my OnePlus Watch 3.
Unlike the initial $160 OnePlus Watch” target=”_blank and in 2014’s $180 Watch 2R” target=”_blank, whose primary draw was cost, the Watch 3 moves the emphasis from cost to efficiency. With its $330 price, OnePlus is placing it as a costs front runner tool, completing straight with likewise valued Put on OS watches like the Google Pixel Watch 3 and Samsung Galaxy Watch 7 What really establishes it apart is its battery, which is bigger than its precursor at 631mAh (versus 500mAh on guard 2).
The Watch 3 utilizes a twin chipset system to break up jobs and enhance power usage and get back at much more out of its huge battery. The Snapdragon W5 cpu concentrates on powering application use, while the BES2800 MCU Effectiveness chip deals with history jobs that do not make use of as much power.
Though originally unconvinced, my 2 weeks of screening verified that the OnePlus Watch 3 supplies on its five-day battery case. I did 3 GPS exercises, among which was an hour and a fifty percent walk, and 6 complete evenings of rest monitoring. Also its fiercest Put on OS rivals would certainly battle to last 3 days without considering utilizing a low-power setting that removes the watch of its “wise” functions and transforms it right into a pietistic electronic clock. The only caution with the Watch 3 is that it stays on the default “Smart setting” to accomplish the complete 5 days. This setting has a raise-to-wake display and needs utilizing among OnePlus’ main watch deals with. I commonly favor an always-on display screen with a more busy watch face full of my most-used issues and faster ways which would likely bring the battery life closer to 3 days– still a task taking into consideration just how brilliant the display is, also in inactive setting.
When I initially began examining the watch, I made the blunder of choosing a non-OnePlus watch confront with a 3 out of 3 score on the battery drainpipe range and still took care of to press in 4 days well worth of fee. While I have not evaluated the case yet, OnePlus claims the watch can make it to 16 days in “Power Save” leaving it mainly as a committed health and fitness tracker as opposed to a full-featured smartwatch.
Obviously, every person has a various variation of what “typical” usage is, and when you lastly bill it, the Watch 3 goes from absolutely no to 100% in simply under an hour.
Sleek layout, with one titan oversight

The OnePlus Watch 3 just is available in a solitary dimension.
The OnePlus Watch 3 has a smooth stainless-steel layout with a turning crown with an easy-to-grip structure making it easy to transform. There’s a slim titanium bezel mounting the display that’s similar to the old turning bezels on the very early Samsung views that I liked. Unfortunately, this does not relocate, however I such as just how it raises the layout, making it look much less like a huge round 1.5-inch AMOLED display screen strapped to my wrist.
Fairly, this is a fine-looking watch. However as a lady with an average-size wrist, this watch really feels significant and plainly not developed with me in mind. I do not require a rose gold structure and a sparkly pink band, I simply desire it had much more comprehensive sizing choices and possibly a traditional gold choice.

The Watch 3 is much also huge for my wrist.
The watch is available in a black or silver coating, with compatible rubber watch bands in moss environment-friendly, black or Nordic blue that shout “created males.” If the Watch 3’s dimension and bands were its only exemption of women depiction, I could be able to create it off. However it’s missing out on another function I have actually involved anticipate on a smartwatch: menstruation monitoring.
Durable health and wellness functions, minus duration monitoring

The OnePlus Watch 3 is loaded with sensing unit to track your heart price, blood oxygen degrees and also rest.
It’s a huge miss out on that OnePlus really did not consist of menstruation monitoring on guard 3. Menstruation monitoring is currently a basic function in more recent Apple Watch and Garmin smartwatches. The Watch 3 has basically every various other health and wellness function consisting of temperature level monitoring, which can be utilized to assist determine a lady’s ovulation home window.
Oversight apart, it’s clear that OnePlus is spending greatly in health and wellness monitoring. Past standard heart price and rest information, the watch determines advanced metrics like cardio health and wellness, blood oxygen degrees, wrist temperature level, and total wellness, consisting of psychological and tension degrees. It likewise includes an electrocardiogram, though since magazine, OnePlus hasn’t looked for FDA authorization, implying the function will certainly not be energetic in the United States or Canada.
While not medical-grade, OnePlus claims that the Watch 3’s health and wellness metrics are much more precise than in previous versions, many thanks to updated sensing units, improved formulas, and boosted cover glass over the back sensing units for more clear analyses.
The Watch 3 likewise debuts a 60-second health and wellness check-in, an attribute that examines all your vitals at the same time by pushing your finger on guard’s lower switch to produce a circuit. My very first health and wellness check-in was worrying and showed a red exclamation mark with words “uncommon” alongside it. It ends up that all my vitals remained in array, however my rest rating was so reduced that it altered the outcomes.
Battery life is a video game changer for rest monitoring

While not famous on this watch face, the Watch 3’s finest function is its battery life.
As a subtle sleep-tracking hater, I never ever understood simply just how much battery life factored right into my disappointment. As a moms and dad of young youngsters, I currently recognize I’m not obtaining adequate rest, and seeing a poor rest record very first point in the early morning simply establishes me up for a day of dragging and self-pity. I really feel similarly concerning health checks. Not needing to remove the expect 5 successive days made me much more likely to track my rest, and I might have also found out a point or more concerning my rest patterns.
The Watch 3’s lengthy battery allow me collapse right into bed at the end of the day without stressing whether my watch had adequate fee to last with the evening. The watch also tracked my rest on evening 6, in spite of being to 10% battery in “Power Save” setting. The watch likewise has an alternative to keep an eye on SpO2 (blood oxygen degrees) and breathing patterns throughout rest to assist determine even more major breathing concerns, however it will certainly drain pipes the battery much faster and requires to be turned on by hand from either the watch or the mobile application.
According to a current interview from Wareable, OnePlus is currently in the procedure of looking for FDA authorization for rest apnea discovery, which might make the additional battery drainpipe rewarding.
A deserving health and fitness buddy to place you with the speeds

The Watch 3 can sustain over 100 various kinds of exercises.
In regards to health and fitness, the OnePlus Watch 3 covers all the essentials, with greater than 100 various sporting activities settings, 6 of which it identifies instantly: running, strolling, rowing, elliptical exerciser maker, biking and swimming. It likewise uses a “expert” setting for 11 sporting activities that maintain tabs on even more nuanced metrics connected to that sporting activity. For joggers, it’s points like kind and foot equilibrium, and for tennis gamers, it’s swing rate and stroke. While it might be excessive for the majority of, as a jogger that lately found out just how to take advantage of heart price areas to increase exercises, I was delighted to nerd out on the extra metrics.
I utilized it throughout my normal 3-mile run and found out that while I have superb equilibrium in between my right and left feet, my ground call time (for how long my foot remains on the ground) and upright oscillation (just how much I jump) can make use of some renovation to make my runs much more reliable and much less injury-prone. The application offers context for the extra information, however it be frustrating, and you need to dig about for an interpretation of each statistics. I was likewise left hoping for even more workable suggestions for boosting my statistics.
The One And also Enjoy 3’s heart price monitoring stayed on par with my Polar breast band (the gold criterion for professional athletes), with a lag of simply a 2nd or more and a one factor distinction in ordinary heart price in between the breast band and the watch. Heart price works as a standard for a number of the health and fitness metrics on guard 3. Nonetheless, as soon as I began running uphill and inching closer to my optimal heart price, I saw that lag time raised to concerning 25 secs in between what the breast band was revealing (on my phone) and the number on my wrist. I attempted tightening up the band, however it just aided momentarily. By the end of my exercise, the watch revealed that I had actually remained in my peak heart price area for 19 secs, while the breast band taped me in this area for concerning 3 and a fifty percent mins.

Left wing are 2 screenshots from the OHealth application revealing what my Watch 3 tracked throughout a run. On the right are 2 screenshots from the Polar application revealing what my breast band heart price screen tracked.
The lag can be partly because of the sensing unit’s distance to the heart (versus the wrist). Sweat and arm motion can likewise hinder an exact read– a trouble for the majority of smartwatches. Whatever the situation, heart price precision can be a concern if you utilize it for high-intensity sporting activities or even more major training. You’re still much better off utilizing a breast band.
An additional crucial function for exterior sporting activities lovers is its dual-frequency general practitioner radar, which OnePlus claims can place you precisely also in tough atmospheres, such as jampacked cities bordered by high. I stay in a country setting that’s even more lamb than high-rise buildings, so I have not had the ability to totally check this case. It did place me flawlessly on my hour and a fifty percent walk with oak trees and wineries.
With an IP69 score, the OnePlus Watch 3 is likewise waterproof approximately 50 meters.
Bore Down by Put on OS and restricted updates

Right Here’s the OnePlus Watch 3 alongside a OnePlus 13 with the OHealth application open.
The Watch 3 operate on Put on OS 5, with a couple of extra OnePlus layout and navigating functions. You can personalize the turning crown and side switch as faster ways, however every little thing else will certainly seem like a basic Put on OS enjoy loaded with your downloaded and install applications.
The user interface of the Watch 3 really feels slow, with a mild lag in action time, though it came to be less complicated to make use of as I obtained much more accustomed to the swipe and faucet instructions. The UI isn’t precisely instinctive, either. For instance, the battery symbol reveals the staying fee however does not allow you change to “Smart” or “Power Save” setting, which, after some experimentation, I discovered concealed behind what appears like an infinity symbol. There are likewise 3 methods to access the exercise display, however just one of those methods will certainly permit you to include an exercise kind (with the listing of applications). This might be even more of a Put on OS navigating concern than a OnePlus issue, however it’s still troublesome.
Furthermore, you’ll require to download and install the different OHealth application to your phone to access the watch’s complete variety of health-tracking functions. The application itself is aesthetically enticing and instinctive, however the arrangement had not been smooth. It took numerous attempts to sync with my Google Wellness information. It deserves keeping in mind that I was utilizing a programmer’s variation of the OHealth application, so arrangement might be smoother on the general public variation.
The OnePlus Watch 3 might likewise lapse faster than a few of its competitors. Unlike Samsung’s Galaxy Watches, which supply 5 years of Put on OS updates, the OnePlus assurances sustain for software application and safety updates just till 2027. The Watch 3 will certainly obtain upgraded to Put on OS 6, and 7, placing it in accordance with the Pixel 3, which introduced in the autumn of 2024.
Strong battery life and functions tip the range

Right Here’s the Watch 3 being billed.
If you’re searching for a watch with a smaller sized impact or an extra womanly layout, after that the OnePlus Watch 3 might not be your best option. However if battery life goes to the top of your wishlist, this is one Android smartwatch that’s certainly worth taking into consideration. The OnePlus Watch 3 is a costs smartwatch at a midrange cost that examines almost all packages for fitness functions and outlives most rivals when it involves battery life– simply not when it involves software application updates. The OnePlus Watch 3 is currently offered for $330 on the OnePlus internet site.