Introduction
OnePlus has stepped up its smartwatch game with the Watch 3 — targeting users who want premium design, advanced health and fitness tracking, and capable OS support under a sleek package. With the Watch 3, OnePlus brings a 1.5″ LTPO display, dual‑chip architecture (Snapdragon W5 + efficiency MCU), the latest Wear OS 5, and a strong battery life claim. This review breaks down what the Watch 3 gets right, where the compromises lie, and whether it’s the right purchase for you in 2025.
Design & Build
The OnePlus Watch 3 features a refined premium design: a titanium alloy bezel, stainless steel frame, and sapphire‑crystal front glass. The build exudes a high‑end feel — especially when paired with the fluoro‑rubber straps offered in premium editions. Its durability credentials include MIL‑STD‑810H certification, IP68 dust & water resistance, plus a 5ATM rating for swimming and light water exposure.
The device is dimensioned at roughly 47 × 46.6 × 12.1 mm (for the large model) and weighs about 49.7 g without strap in some configurations—impressive for a full‑feature smartwatch in 2025.
The rotating crown along the side gives tactile control over the interface, adding to the sense of quality.
In short, OnePlus positions the Watch 3 not as entry‑level, but as a flagship wearable contender.
Display & User Experience
At the heart of the Watch 3 is its 1.5″ (466 × 466) LTPO AMOLED display, with a claimed peak brightness of up to 2,200 nits — among the brightest in the wearable market. The LTPO panel enables smooth adaptive refresh, friendly Always‑On Display (AOD) behavior, and excellent visibility even outdoors.
The UI runs on Wear OS 5, offering a full ecosystem of Watch faces, Google services, and third‑party apps (subject to availability in region). Navigation is smooth, and the rotating crown adds precision in scrolling and selection.
Overall, the screen and usability deliver a premium wrist experience.
Performance & Operating System
Under the hood, the OnePlus Watch 3 is equipped with a Snapdragon W5 performance chipset (or equivalent) plus a secondary efficiency MCU (BES2800BP) to handle low‑power tasks. This dual‑engine architecture allows the Watch 3 to switch between heavy tasks (apps, responsiveness) and ultra‑efficient modes (sleep tracking, background monitoring) without sacrificing battery life.
Storage is quoted at 32 GB in some regions, providing room for apps and media. Connectivity includes GPS (dual band L1+L5), Bluetooth, WiFi, NFC for payments, and support for Android phones running a compatible version.
OnePlus also promises three years of software updates (major OS + security), which is competitive for the wearables space.
In real use, the Watch 3 feels responsive and polished — though as always with Wear OS devices, app ecosystem maturity and region‑specific support vary.
Health, Fitness & Sensors
OnePlus has loaded the Watch 3 with a rich set of health and fitness sensors:
- Optical heart‑rate monitor (24/7)
- SpO₂ (blood oxygen) tracking
- Wrist skin temperature sensor
- Vascular health measurement (arterial stiffness)
- Sleep tracking with snoring risk assessment
- A “60‑Second Health Check‑In” mode for quick summary health scan
- 100+ sport modes (running, swimming, tennis, skiing, rowing etc) including “Professional modes” for deeper tracking
Water‑resistant to 5ATM and built to handle swim tracking, the Watch 3 positions itself as a serious tracker for active users.
The health data integrates with the OHealth app and Google Health Connect, giving the wearer detailed insight into fitness, wellness, and lifestyle metrics.
Battery Life & Charging
One of the most impressive claims for the Watch 3 is battery: OnePlus quotes up to 5 days (smart mode), up to 16 days in power‑saver mode, and up to 48 hours in heavy use mode depending on settings.
Real‑world use shows strong results — though heavy GPS + always‑on display modes will shorten runtime.
Charging is via wired or magnetic puck in most markets; some versions may support wireless charging depending on region. Fast charging capabilities allow top‑ups quickly.
For many smartwatch buyers, achieving 3‑5 days of real use is a major plus and places the Watch 3 ahead of many rivals.
Connectivity & Extras
- Dual‑band GPS ensures more accurate tracking of outdoor activities
- NFC support for contactless payments
- Bluetooth calling, built‑in speaker & mic for handling calls from wrist
- WiFi and Bluetooth latest standards (e.g., Bluetooth 5.2)
- Extensive strap ecosystem (though compatibility with earlier Watch versions may vary)
- Premium materials (titanium, sapphire) for durability and style
These extras push the Watch 3 into the premium tier of wearables.
Price & Availability (in Bangladesh/Regional)
In Bangladesh, early pricing for the Watch 3 is around ৳27,890 (offer price) for the 43mm version. Some listings show higher depending on size and variant (e.g., 46mm).
Globally the initial launch price started around US $329 (or equivalent).
As always, local availability, warranty support, and accessory compatibility should be verified when importing or buying regionally.
Pros & Cons
👍 Pros:
- Premium build materials (titanium bezel, sapphire glass)
- Ultra‑bright LTPO display with refined user interface
- Dual‑engine chipset architecture for performance + efficiency
- Comprehensive health & fitness sensor suite with 100+ sport modes
- Strong battery life claims (3‑5 days typical use)
- Wear OS ecosystem with app and service support
👎 Cons:
- Premium price for some markets
- Wear OS app ecosystem and updates may vary by region (some reviewers note missing features)
- Bulkier size may not suit those with smaller wrists
- Some users report issues such as durability or software quirks in early batches
- Smartwatch competitor brands (e.g., some from Apple, Samsung) may still offer broader accessory/network support in some regions
Final Verdict
The OnePlus Watch 3 delivers a compelling mix of premium hardware, polished design, high‑end sensors, and strong battery life — offering real value in the flagship smartwatch category. If you’re looking for a top‑tier wearable in 2025 that balances style, performance and fitness tracking, the Watch 3 makes a strong case.
For buyers in Bangladesh or similar markets, if you value build quality, battery life, and feature‑rich health tracking, this is one of the best value options available. Some trade‑offs exist (ecosystem, price), but overall it earns a strong recommendation.
GizmoDaily Verdict: 8.9 / 10