CMF by Nothing smartwatch with 1.43-inch display

If checking your phone interrupts a workout, commute, or busy stretch at home, the CMF by Nothing Watch 3 Pro brings calls, activity tracking, and health metrics to your wrist. Its speaker and dual microphones let you handle Bluetooth calls without pulling out your phone, while the AMOLED screen puts workout and wellness information in view.

It also aims beyond basic step counting, with sleep tracking, GPS, and more than 130 sports modes. That breadth is useful if you want one watch for everyday activity and workouts, though it may be more than you need for simple timekeeping.

Technical details

The Watch 3 Pro has a 1.43-inch AMOLED display and an IP68 rating, and this version is Light Grey. Health tracking includes heart rate, blood oxygen (SpO₂), and stress monitoring. Sleep tracking is designed to cover sleep quality, recovery, and naps, while activity features include precision step counting, an Active Score based on METs, and performance analysis powered by GOMORE.

For exercise, the watch supports more than 130 modes and can recognize seven types of movement. The listed smart features include GPS, music playback controls, quick replies, and Bluetooth calling. The maker says battery life can reach 13 days, with a 2.5-hour charging time, treat that as a stated maximum rather than a guarantee for every routine.

Compatibility

The watch is described as compatible with Android and iOS phones. Through the Nothing X App 3.0, you can manage settings, health tracking, widgets, reminders, and watch faces. The listed data connections include Apple Health, Google Health Connect, and Strava, Google Fit is also named in the product information.

This makes the watch more appealing if you already use one of those services to keep activity data together. If you mainly want a standalone tracker and do not plan to use its app or connected features, much of its appeal may go unused. A solid pick if you want workout tracking alongside calls and phone-linked health insights.

Usage tips

For a practical setup, customize the watch face and widgets around the information you check most, then choose a sport mode before a walk or workout. Afterward, use the activity and recovery information to review your session rather than relying on step totals alone. During a commute or while cooking, the built-in speaker and microphones can make a quick call easier to manage without handling your phone.

The watch also offers several kinds of wellness data, but those readings are best treated as tracking tools, not as a substitute for professional medical advice. It might not be a great match if you want a very simple watch with few connected functions, or if you need detailed specifications about how each health metric is measured, those details are not provided here.

Practical doubts

Can you take calls from the watch? Yes. It has a built-in speaker and dual MEMS microphones for Bluetooth calls, and you can sync up to 30 contacts for quick access.

Does it track sleep as well as workouts? Yes. The listed features include sleep quality, naps, and recovery tracking, in addition to sport modes and activity analysis.

How long does the battery last? The stated maximum is up to 13 days, and the listed charging time is 2.5 hours. Your experience may differ from that maximum.

Buying verdict

The Watch 3 Pro is aimed at someone who wants a connected fitness watch rather than a basic band: it combines a broad selection of sports modes with sleep and health tracking, GPS, and wrist-based calls. The AMOLED display and support for common health and activity services add everyday convenience, especially if you like checking progress without opening your phone.

Choose it if those connected features will earn their place in your routine. If you only need simple step and time tracking, a more basic device may be easier to justify, and if your decision depends on detailed sensor or battery conditions, the available product information leaves those specifics unclear.