The CMF by Nothing Watch 3 Pro is a genuine phenomenon in the budget wearables market.
It boasts features—like dual-band GPS and two-week battery life—that are typically reserved for watches costing three to five times as much.
While its size and the Nothing Phone-only ChatGPT feature are significant compromises, the core hardware and performance make this an unbeatable value proposition.
Is the CMF Watch Pro 3 good?
The CMF Watch Pro 3 by Nothing is generally very well-regarded, especially for its price point, often being praised as an excellent budget smartwatch.
Here’s a summary of the common Pros and Cons.
Pros
- Excellent Value with Affordable Price
- Up to 13 days Battery Life with regular use
- Premium Look and Feel
- High-Quality, Large AMOLED Display
- Smooth, Fluid Software Experience
- Detailed Health and Sleep Tracking (VO2 Max, stress, SpO2)
- Dual-band GPS
- Over 130 sport modes and a running coach feature
Cons
- One size only
- Fiddly/Proprietary Magnetic Charger
- No third-party apps, limited emoji support
- ChatGPT functions only work with a Nothing phone
- No NFC for contactless payments
CMF Watch 3 Pro Smartwatch
Verdict: At just $79, the CMF Watch 3 Pro offers unbeatable value with premium features packed in a stylish body. A smart buy for any fitness lover or tech enthusiast.
Design, Display, and Compatibility
The Watch 3 Pro, built by CMF, immediately feels more premium smartwatch than its budget price tag.

The Display, Size, and Band
The large 1.43-inch AMOLED display is bright (up to 650 nits), clear, and supports an always-on display (AOD).
However, the watch is only available in a single, large size. Suppose your wrists are smaller than 6.5 inches.
In that case, you may find the watch too large or “chunky,” a critical consideration that might disqualify it for smaller users. Fortunately, the watch accepts standard 22mm bands for easy customization.
CMF Watch 3 Pro Apps and Android/iPhone Compatibility

The watch connects seamlessly with the dedicated Nothing X app for both Android and iPhone (iOS) devices, allowing for data sync, settings management, and full feature access.
All health tracking, notifications, and workout logging work equally well on both operating systems.
Performance and Tracking Accuracy
For a $99 smartwatch, the accuracy and feature depth are genuinely surprising.
Dual-Band GPS Accuracy for Runners and Cyclists

The inclusion of dual-band GPS is the most significant performance feature, usually found only on premium Garmin or Apple Watch Ultra models.
This technology uses multiple satellite frequencies to achieve superior location accuracy, even in dense city environments or deep woods.
In testing, the GPS was rock-solid, providing precise tracing that rivals the best dedicated running watches.
Advanced Health Monitoring and Sleep Tracking
The Watch 3 Pro delivers reliable heart rate, blood oxygen, and stress monitoring.
The sleep-tracking performance is remarkably accurate, automatically logging naps and providing a detailed breakdown of REM and Deep Sleep cycles.
Side-by-side comparison with a professional-grade, multi-thousand-dollar sleep system showed the CMF Watch 3 Pro’s metrics to be nearly identical.
Fitness and the Running Coach Feature
With over 130 sport modes (including planks and kite flying), the CMF Watch 3 Pro is comprehensive.
It also offers a custom AI running coach that builds personalized training plans for 5k or 10k goals, a feature handy for aspiring athletes.
CMF Watch 3 Pro Battery Life: How Long Does it Really Last?

The battery life is a massive win. While Nothing claims 13 days of typical use, testing revealed that even with high-use settings (sleep tracking, regular heart rate checks), the watch routinely lasted 10-12 days, a true game-changer for users accustomed to daily or bi-weekly charging.
Heavy use (frequent GPS) still comfortably delivers about 10 days of wear.
Recharging the 350mAh battery takes about 90 to 100 minutes. The primary complaint is with the proprietary magnetic charger, which has a weak connection and is easily knocked off.
It forces you to charge the watch face down on a flat surface.
Does CMF Watch 3 Pro Have NFC Payments?
Despite containing the necessary NFC hardware, CMF has not enabled contactless payments (Google Wallet, Apple Pay, etc.).
This is the single biggest “smartwatch feature” omission and is a non-negotiable deal-breaker for users who rely on tapping their wrist to pay.
The ChatGPT Feature: A Nothing Phone Restriction
The heavily advertised on-wrist ChatGPT feature is locked down. It is only functional when the Watch 3 Pro is paired with a Nothing brand phone.
For the majority of users on standard Android or iPhone devices, this advanced feature is unavailable.
Final Verdict: Is the CMF Watch 3 Pro Good?
Yes, the CMF Watch 3 Pro is an outstanding budget smartwatch.
If your main priority is a device that accurately tracks your activity, provides dual-band GPS, and lasts for two weeks on a single charge—all for under $100—this watch is the definitive best choice on the market.
Do not buy this watch if you need to use your wrist for mobile payments (NFC) or if you have a very small wrist. If those are non-negotiable, you must look elsewhere.
👉 Check today’s price on Amazon — it’s often discounted below $88, and stock tends to move fast.
Does the CMF Watch Pro 3 have GPS?
Yes, the CMF Watch 3 Pro does have GPS, and it’s perfect. It features dual-band GPS, a high-end feature usually reserved for more expensive smartwatches. This technology significantly enhances GPS accuracy, allowing the watch to pinpoint your location with greater precision (even telling you which side of the road you’re on) when tracking outdoor activities like running, cycling, or hiking. This is a significant plus for its fitness features.
How long is the battery life on the CMF Watch 3 Pro?
The battery life is one of the most significant selling points of the CMF Watch 3 Pro.
Official Claim: Nothing states the watch gets about 13 days of use with typical functions.
Real-World Performance: In testing, the watch often exceeded this claim, lasting closer to 10 days before needing a recharge, even with regular use of sleep tracking and heart rate monitoring.
Heavy Use: With hefty use, including continuous GPS tracking or heavy notification traffic, you can still expect around 7 to 8 days of power.
It is easily a two-week watch and stands out dramatically compared to competitors that require daily or every-other-day charging.
How to use ChatGPT on CMF Watch 3 Pro?
While the CMF Watch 3 Pro was marketed with on-wrist ChatGPT access, there’s a significant catch regarding compatibility:
The ChatGPT feature is only available if you pair the Watch 3 Pro with a Nothing phone.
If you own a Nothing brand phone, you’ll be able to access the feature through the dedicated watch apps and OS. However, for the majority of users who pair the watch with a standard Android or iPhone, this function is not available.
Is the Nothing Watch Pro 3 waterproof?
Yes, the watch has an IP68 rating for water- and dust-resistance, making it suitable for showers and swimming.
Also See:- Our Favorite Budget Smartwatch Just Hit $59: Grab the CMF Watch Pro 2





