100-hour battery life Android smartwatch OnePlus Watch 2

Robert Haba
Robert Haba
5 min read
oneplus watch 2
Trust this source on Google
Add trusted source

The OnePlus Watch 2 is now available on Amazon for $250, which is $50 less than its usual price. Because of this, it is among the greatest and easiest smartwatches we have tried.

In 2021, OnePlus released the OnePlus Watch, and I ordered it right away because the hardware looked amazing and it cost $159. I sent the item back after a few weeks because it did not provide anything useful.

oneplus watch 2

Since many smartwatches operate lean and mean, the Real-Time Operating System (RTOS) used by the original OnePlus Watch was ideal. With a dual-engine design, the OnePlus Watch 2 this year goes one step further by providing both Wear OS 4 and RTOS on a single watch. The gadget has a longer battery life than any other Google Wear OS or Apple Watch thanks to its innovative design, making it the most effective Wear OS watch on the market right now.

OnePlus Watch 2

OnePlus Watch 2

$289.99

OnePlus has produced one of the most stylish smartwatches on the market right now, in addition to a strong operating system strategy. The watch features a 2.5D smooth sapphire crystal face, a sturdy silicone band, and a stainless steel watch case. With an oval button on the bottom and a round button on top, the buttons on the right are elegantly integrated into the bezel.

With its IP68 rating and 5 ATM water resistance, the OnePlus Watch 2 is safe to wear when swimming and engaging in other outdoor activities. Furthermore, the device surpasses even the Apple Watch Ultra 2 and Galaxy Watch 5 Pro because it was constructed to meet MIL-STD-810H specifications.

According to OnePlus, the watch may last up to 12 days in power-saver mode, 100 hours in Smart Mode, and 48 hours when used extensively. Its battery is 500 mAh. I was able to charge the watch every three to four days and wear it around the clock during my two weeks of testing. I used the gadget for active heart-rate monitoring while indoor rowing, GPS tracking while running and walking, and more.

oneplus watch 2

The always-on display mode will use up the battery more quickly. However, when I first tested it, I left the always-on display off because I discovered that the lift-to-wake feature worked great.

The OnePlus Watch 2 boasts a great battery life, but it also supports 7.5W VOOC fast charging, which allows you to charge it to 100% in just one hour and wear it for a day much faster. Fast charging, CPU efficiency, and a long battery life are the ideal combinations for a smartwatch.

Both L5 and L1 satellite positions are available, and Beidou, GPS, Galileo, GLONASS, and QZSS GNSS are supported. The tracking of the watch was nearly identical to that of my specialized GPS sports watches. Additionally, Wear OS support allows you to utilize your favorite watch apps instead of OHealth. The watch’s heart-rate tracking was precise as well.

The OnePlus watch does not function with an Apple iPhone, and you must have the OHealth software installed on your Android phone. The OHealth app is used to control the watch apps and settings, as well as the health and wellness functions, thus the Wear OS app is not used.

OnePlus Watch 2

OnePlus Watch 2

$289.99

I find the OHealth app to have a more user-friendly UI than the Fitbit and Google applications that come with Pixel Watches. OnePlus has stated publicly that it has intentions to offer syncing to other services, like Strava, in the future, but for now, the data gathered by the OnePlus Watch 2 is still in OHealth.

You can measure your heart rate, blood oxygen, stress, sleep, workouts, and more with the OHealth app and OnePlus Watch 2. The Wear OS tiles that show up when you swipe left and right on the watch face may also be managed through the OHealth app. I found the OHealth app to be more user-friendly than the Wear OS app on a Pixel phone, and it has a lot of settings.

Check out the many workout and health options, such as heart-rate alerts, breathing tests while you sleep, auto-workout detection, and even the ability to customize the screens for your preferred routines.

There is potential for development even if the OnePlus Watch 2 is a far better watch than the original model. The watch lacks cellular connectivity, has a single 47mm diameter and weighs 80 grams, is not the best for people with smaller wrists, does not support fall detection, can not control a OnePlus phone camera from the watch (though this will be fixed in a future update), does not have any features for tracking women’s health, can not record ECG readings, and does not have a skin-temperature sensor.

But I really enjoyed wearing this classy watch and used the face swipe to access my favorite tiles. I can not use the Google Pixel Watch since it is very small and has a limited battery life. Better solutions at affordable prices are possible, as demonstrated by the OnePlus Watch 2.

OnePlus Watch 2

OnePlus Watch 2

$289.99

Featured Deal
1 / 5
Google Pixel Watch 4

Google Pixel Watch 4

4.8 / 5.0
396.00$499.99-21%
Buy
Samsung Galaxy Watch 8

Samsung Galaxy Watch 8

4.9 / 5.0
$289.99$349.99-17%
Buy
DEAL!
Samsung Galaxy Watch Ultra (2025)

Samsung Galaxy Watch Ultra (2025)

5.0 / 5.0
$449.99$649.99-31%
Buy
Budget
Nothing Phone (4a) Pro

Nothing Phone (4a) Pro

4.5 / 5.0
$494.99$599.00-17%
Buy
💎Best Android Device
Samsung Galaxy S26 Ultra

Samsung Galaxy S26 Ultra

4.9 / 5.0
$1,212.85$1,499.99-19%
Buy
* As an Amazon Associate, Droid Tools earns from qualifying purchases. Disclosure.
Founder · Editor-in-Chief
Robert Haba is the founder and editor-in-chief of Droid Tools. A lifelong gadget enthusiast with over a decade following the Android ecosystem, he built this publication to cut through the noise and give readers honest, real-world coverage of the tech they actually use.

Comments & Discussions

Join the conversation! We use Disqus to handle comments. Click the button below to load the comment section.

Keep Reading

Nothing might finally be putting its own name on a smartwatch, and the rumored specs suggest it could be the company’s first real entry into Wear OS. Nothing’s First Self-Branded Smartwatch Reportedly Coming in September While there’s reportedly been some turbulence behind the scenes at Nothing recently, the company appears to be moving ahead with […]

nothing watch
WearablesRobert HabaJuly 28, 2026

Zepp Health has released a new firmware update for select Amazfit smartwatches in the Balance and Cheetah series, adding fresh functionality for both training sessions and everyday use, including a new Bluetooth speaker mode. What’s Included in Firmware 6.2.104.6 The rollout covers firmware version 6.2.104.6, now reaching three devices: the Amazfit Cheetah 2 Ultra, the […]

amazfit update
WearablesRobert HabaJuly 23, 2026

Following recently leaked official renders of the Galaxy Watch 9 and Galaxy Watch Ultra 2, the full specifications for both upcoming smartwatches have now surfaced as well. The details come from WinFuture, starting with the Galaxy Watch 9, which is expected to be the more affordable of the two. Here’s what the leak reveals about […]

galaxy watch 9 specs
WearablesRobert HabaJuly 19, 2026

Honor has officially launched the Watch 6 in the global market, positioning it as a flagship wearable built around a classic design and a strong sports and health feature set. The device arrives in Twilight Brown and Shadow Black color schemes, giving it a more refined look than typical sport-focused smartwatches. The Watch 6 succeeds […]

honor watch 6 brown
WearablesRobert HabaJuly 18, 2026

A display problem that has already plagued several smartphone brands now appears to be showing up on Samsung’s Galaxy smartwatches too. Reports of a Galaxy Watch 4 green line defect have surfaced online, raising fresh concerns about AMOLED reliability across Samsung’s wearable lineup. Reddit Reports Detail the Defect A Reddit user named HKNworld posted photos […]

Galaxy Watch 4 Green Line Issue Reported After One UI 8 Watch Update
WearablesCristian PenisoaraJuly 17, 2026

After yesterday’s chaos, when Google’s entire Pixel 11 series showed up early on Amazon, it felt like only a matter of time before the Pixel Watch 5 made its own surprise appearance. Sure enough, that’s exactly what happened today, this time through renders that look genuinely credible. The Pixel Watch 5 renders show the watch […]

Google Pixel Watch 5
WearablesRobert HabaJuly 15, 2026