Hands on: OnePlus Watch 3 review – Android’s long-lasting chunky smartwatch

OnePlus Watch 3: One minute review

Writing this OnePlus Watch 3 review, I was struck by how much smaller of a leap we've seen from the OnePlus Watch 2 to the OnePlus Watch 3, compared to the leap the Watch 2 made from the original. The first OnePlus Watch was considered bad by every metric, but the OnePlus Watch 2 was a spectacular improvement in every way.

The OnePlus Watch 3 has much less work to do, iterating on an already successful design. Like the OnePlus Watch 2, it’s got the look of a classic dress watch with its outer casing and bezel, now upgraded from stainless steel to titanium. Its AMOLED display is now comprised of 2D sapphire crystal for improved durability, and its battery life has been extended from the OnePlus Watch 2’s 100 hours to 120 hours, beating rivals like the Samsung Galaxy Watch Ultra and Apple Watch Ultra for longevity.

I’ve only used it for a few hours, but functionally it performs as smoothly and as well as any Wear OS watch I’ve yet used, including the Google Pixel Watch 3. It’s an option most Android phone users should consider, and it’s sure to make its way into our best Android watches list in future.

Its usability is vastly improved by the addition of a rotating digital crown, allowing for easier scrolling and navigation, especially during sweaty workouts in which the touchscreen would be harder (or grosser) to use.

My main gripe is with the watch’s size: I would have loved to see OnePlus bring out a second, smaller model for those with smaller wrists. Many people, including a lot of women, will find it’s just too big and heavy for daily wear. However, this issue aside, it’s a powerful, robust daily driver with modern health tools and a timeless look.

OnePlus Watch 3: Specifications

OnePlus Watch 3: price and availability

• £319 in the UK (approximately $400 / AU$630)
• Available in the UK / EU
• Availability for other regions is TBC

The OnePlus Watch 3 is available in the UK, where it's priced at £319 (approximately $400 / AU$630), and in the EU. It's available to order from today.

We’re currently unsure if the watch will be available in the US and AU markets, but will update this full review with that information when we get it.

OnePlus Watch 3: Design

• Sumptuous screen
• Rotating crown
• Very big for smaller wrists

As mentioned, the OnePlus Watch 3 shares many design similarities with the OnePlus Watch 2. However, there are a few changes both under the hood and, erm, over it. The watch still runs Wear OS 5 on its Snapdragon W5 chipset, but it also runs a second operating system, RTOS, powered by a new BES2800 MCU chip.

By switching from Wear OS to the low-power RTOS, the OnePLus Watch 3 is able to extend its battery life. In conjunction with the new chip, a bigger 631mAh battery means the Watch 3 lasts up to 120 hours, compared with the older model's 100 hours.

The shape and design of the OnePlus Watch 3 are very similar to the Watch 2 pictured below. At 46.6mm x 47.6mm x 11mm, not including the thickness of the sensor, it’s a hefty watch at 81g including strap. It might look like a timeless metal dress watch, which helps, but the sheer size of it will be off-putting to a lot of people.

However, its size does mean it’s packing a lovely big screen. Its 2D sapphire crystal and buttery-smooth AMOLED puts out 2,000 nits, the same brightness as the Apple Watch Ultra 2. The big screen makes reading messages and notifications a pleasure rather than an annoyance to, doubly so thanks to the other big new addition: a rotating digital crown. Pressing the crown takes you back to the main menu, and its wheel is used for scrolling, while the side button starts workouts. Coupled with the touchscreen, it’s all very intuitive, and a design that will be familiar to users of the best Apple Watches.

OnePlus Watch 3: Features

• 60-second heart health check-in
• New ECG functionality
• Dual-frequency GPS

As well as the rotating digital crown, tougher new screen and bezel, and longer battery life, there are software features aplenty, both new and returning. The beauty of the best Android watches (much like the best Apple Watches) is that you can stuff them full of third-party apps, and it’s the same case here. I’ve already got Strava, Spotify, AllTrails, Audible… all my usual suspects.

First up among the new stuff is the 60-second health check-in. By pressing your finger on the All-In_one sensor button, the OnePlus Watch 3 measures your heart rate, conducts an electrocardiograph scan (this feature will be available later in the year), and tracks blood oxygen levels, mental wellness, wrist temperature, sleep quality, and a new metric called ‘vascular age’, similar to Garmin’s Fitness Age, but specifically tailored to heart health.

A big emphasis is placed on heart heath, with vascular elasticity measured and the new ECG functionality working with this to create benchmarks based on age. Essentially, the OnePlus Watch 3 can tell you a rough idea of how 'old' your heart is in comparison to the rest of your body. If you’re in your thirties but very fit, you might have the heart of a 25-year-old for example, whereas someone out-of-shape might have a heart age edging towards the forties.

GPS is now dual-frequency for additional accuracy. The Watch’s basic workout app supports over 100 different sports mode, but only 11 of these offer ‘professional modes’ or unique metrics, such as running. The rest are nice-to-haves for instant input into your digital training diary.

I’ll be adding a Performance section, along with final scores, in my full review after I've worn and tested the watch over a longer period. Check back soon!