1 / 3CMF by Nothing Watch Pro 3 Smartwatch, 1.43-inch AMOLED, Light Grey
Light Grey: CMF by Nothing Watch Pro 3 is a round smartwatch with a 1.43-inch AMOLED display, built-in dual-band GPS and Bluetooth calling. Its advertised battery life is up to 13 days, while customer feedback is positive about battery life but mixed on connectivity and tracking.
At a glance
- Manufacturer-listed dual-band GPS uses L1 and L5 signals and supports multiple satellite systems.
- Bluetooth calling is described with AI-based noise reduction, two microphones and a built-in speaker.
- Health and fitness features include heart-rate, blood-oxygen, stress and sleep tracking, alongside 131 listed sports modes.
- Advertised battery life is up to 13 days for typical use, with 10 days stated for heavy use.
- The 1.43-inch AMOLED display is listed at 454 x 454 resolution, with a 60 fps refresh rate claimed in the feature text.
Reference price: £99.00
Price checked: 12 Nov 2026
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Pros and cons
Pros
- Built-in GPS and Bluetooth calling provide outdoor route tracking and wrist-based calls without those functions being described as cellular service.
- The round AMOLED display is paired with health tracking, sleep features and a broad selection of sports modes.
- The package list explicitly names a charging cable and user manual.
Cons
- The listed storage capacity is 256 MB, so buyers seeking substantial on-watch storage should verify whether it meets their needs.
- Bluetooth calling and phone-linked features depend on pairing with a compatible smartphone.
Technical specifications
28 specifications| Brand | CMF by Nothing |
|---|---|
| Model | CMF Watch Pro 3 |
| Colour | Light Grey |
| Screen size | 1.43 Inches |
|---|---|
| Screen technology listed | AMOLED |
| Resolution | 454 x 454 |
| Maximum display brightness | 670 Nit |
| Wireless connection listed | Bluetooth |
|---|---|
| GPS | Built-in GPS |
| Input | Buttons, Dial, Touchscreen |
| Compatible phones | Compatible with iOS 13+ and Android 6.0+ devices |
| Battery life listed | 13 days |
|---|---|
| Battery type | Lithium Ion |
| Battery capacity | 350 |
| Battery charge time | 99 Minutes |
| Form factor | Round |
|---|---|
| Weight listed | 1.8 Ounces |
| Band width | 22 Millimetres |
| Water resistance listed | Water Resistant |
|---|---|
| Water resistance depth | 3 Metres |
| Waterproof rating | IP68 |
| Case material | Aluminium |
| Band material | Silicone |
| Operating system | FreeRtos |
|---|---|
| Storage listed | 256 MB |
| Metrics measured | Blood Oxygen Monitor, Heart Rate Monitor, Sleep Duration, Stress |
|---|---|
| Sports listed | Fitness, Multi-Sports, Running, Walking |
| Special features | Activity Tracker, Alarm Clock, GPS, Gesture Control, Voice Call |
What to know before buying
- Battery figures are manufacturer claims: up to 13 days in typical use and 10 days with heavy usage. Actual endurance will depend on usage and settings.
- The listing calls water resistance both IP68 and water resistant to 3 metres. It does not specify activity-specific water-use conditions, so check suitability before swimming or water sports.
What’s in the box
Included- Watch Pro 3
- Charging cable
- User manual
Who is it for?
A good fit for
- People wanting a round AMOLED smartwatch with built-in GPS for walking or running.
- Buyers who want Bluetooth calls, notifications and health or sleep tracking alongside everyday smartwatch tools.
- Users looking for a claimed multi-day battery life rather than daily charging.
Less suited to
- Buyers who need cellular connectivity independent of a paired phone.
- Anyone relying on smartwatch tracking as a medical measurement or requiring guaranteed sensor performance.
- Buyers who need clearly stated, activity-specific water protection or more than 256 MB of listed storage.

Customer reviews on Amazon
- 5 stars
70% 70% - 4 stars
12% 12% - 3 stars
9% 9% - 2 stars
3% 3% - 1 star
6% 6%
Customer feedback highlights appearance, perceived quality, battery life and functionality as positives. Connectivity and tracking experiences are mixed, with reports of sensor failures and poor sleep tracking. That uncertainty matters for buyers relying on the advertised heart-rate and sleep features, despite the listing's claims about enhanced sensors and GPS. The overall rating distribution leans positive, but ratings alone do not establish tracking reliability.
Positive themes
- Customers praise the watch's appearance and perceived quality.
- Battery life and functionality receive positive feedback.
Negative themes
- Some customer feedback reports sensor failures within a month and poor sleep tracking.
Mixed feedback
- Connectivity and tracking performance receive mixed feedback.
Frequently asked questions
What is the advertised battery life?
The listing gives 13 days for typical use and states 10 days for heavy usage. These are manufacturer claims, not guaranteed runtimes.
Does the Watch Pro 3 have GPS built in?
Yes. The listing specifies built-in GPS and describes dual-band L1 and L5 support.
Can it make phone calls?
It supports Bluetooth calling according to the listing. This is not evidence of cellular service, and the watch is listed as Bluetooth-connected.
What phones are listed as compatible?
The listing says it is compatible with iOS 13+ and Android 6.0+ devices.
What comes in the box?
The stated contents are the Watch Pro 3, a charging cable and a user manual.

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