CMF by Nothing Watch 3 Pro Smart Watch for Men Women, Bluetooth Call AI Energy Score, 1.43” Heart Rate Tracking, Sleep Monitor, GPS & 130 Sport Modes, Fitness Tracker for Android iOS, IP68 Light Grey
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Availability:
In Stock.
Arrives
Saturday, May 30
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Color: Ash Grey
Features
- Ultra-Accurate Health & Fitness Tracker: The CMF Watch 3 Pro smart watches enhance your fitness journey with advanced heart rate tracking (4-channel sensor, 10%+ accuracy boost), precise sleep monitoring (5%+ accuracy, sleep zone tracking), stress, SpO2 levels, and L1+L5 Dual Band GPS for ultra-accurate navigation. The watch features 130+ exercise modes with GOMORE-powered performance analysis, 7-type motion recognition, plus daily health guidance for a smarter, healthier lifestyle.
- Your AI Life Companion: The CMF Smartwatch enables crystal-clear Bluetooth calls with AI noise reduction, a built-in mic, and speaker, supporting 30 contacts. New gesture control allows one-handed operation for calls, music, morning news, smart wallpapers, voice notes with transcripts & personalized fitness Coaching, and more. Requires Android 6.0 or iOS 13+. Download the Nothing X App 3.0, all on Your Watch!
- Style for Every Occasion: Elegant Brushed Metal to Rugged Outdoor Designs feature a vibrant 1.43 AMOLED Display with sharp resolution, bigger display with up to 10 percent more screen areaa thinner, lighter, and more comfortable design. Comes with Always-on Display, featuring 150 AOD Watch faces to match the main dial, providing the richest customization options. The ideal smartwatch for seamless transitions from the boardroom to adventure!
- Pro-Grade Fitness & Health System: Active Score (MET-Based Fitness Tracking) on this advanced fitness tracker helps users understand their daily health status and effectively monitor their well-being. It offers 24/7 medical-grade heart rate/SpO2/stress monitoring, women's health features to track menstrual cycles and retrospective ovulation estimates, smart hydration & posture reminders, plus precision step counting with GOMORE technologyall with advanced wear detection!
- More Convenient & Durable: This smartwatch features a 3D warm-up guide and 'My Heart Rate' technology for personalized training zones. It's advanced Smart Movement Algorithm tracks your workouts in detail - Ink. aerobic/anaerobic performance, training load, and recovery time. Seamlessly sync with Apple Health, Google Fit, and Strava to share data and challenge friends. The Watches feature IP68 waterproof against sweat and water splashes. 13 days long battery life, your ultimate Workout Partner.
Operating System: ROTS
Memory Storage Capacity: 256 MB
Special Feature: Activity Tracker, Alarm Clock, Audio Recording, GPS, Gesture Control, Notifications, Phone Call, Touchscreen See more
Battery Capacity: 350
Connectivity Technology: Wi-Fi
Wireless Communication Standard: Bluetooth
Battery Cell Composition: Lithium Ion
GPS: Built-in GPS
Shape: Round
Screen Size: 1.43 Inches
Package Dimensions: 5.75 x 5.67 x 1.02 inches
Item Weight: 1.8 ounces
Item model number: D399
Batteries: 1 Lithium Polymer batteries required. (included)
OS: ROTS
Connectivity technologies: Wi-Fi
GPS: Built-in GPS
Special features: Activity Tracker, Alarm Clock, Audio Recording, GPS, Gesture Control, Notifications, Phone Call, Touchscreen
Display technology: AMOLED
Other display features: Wireless
Human Interface Input: Dial, Touchscreen
Scanner Resolution: 454 x 454
Color: Ash Grey
Whats in the box: Charging Cable, User Manual, Watch Band
Manufacturer: CMF BY NOTHING
Language: English
Date First Available: July 22, 2025
Weight: 1.8 Ounces
Standing screen display size: 1.43 Inches
Memory Storage Capacity: 256 MB
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Saturday, May 30
Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
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Top Amazon Reviews
Color: Dark Grey
This is a simple and effective smart watch. It works very well with my Nothing Phone 3, and is easy to use and navigate itself. The weight feels right for a watch of its size and it isn't fatiguing or uncomfortable to wear; in fact, it's the only watch I've ever been able to comfortably sleep wearing. Usually I'd take mine off at bedtime, but I don't really notice I'm wearing it. Battery life is also good so far. As of writing this, I'm at about 48 hours of use since my last charge and the battery is 83%. I don't have always on display enabled, which probably helps a bit too. If you enjoy a minimalist style and don't need the frills of the more expensive Garmin smart watches this will probably be a good fit for you.
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Reviewed in the United States on November 28, 2025 by Hank
Color: Dark Grey
I've had this watch for a few days now. I've owned a few smart watches over the past few years (including the original Pebble back in the day). I'm very impressed with this watch in many ways. The watch itself is well made and solid. It's impressive for the price point. The battery life is very good. 3-4 days without a charge so far, even with some of the battery draining features turned on. Definitely the best battery life I've seen. I'm sure I can go another few days with this configuration. The heart rate monitor works quite well and is accurate for me. Blood Oxy monitor works, but I'm not 100% sure how exactly accurate it is (close enough for me). In fact most all of the watch works as advertised. The only thing I'm not liking is the sleep monitor. It's been the least accurate of all of the watches I've owned. It thinks I'm asleep in while I'm working at my desk, or watching a movie. If I believed how much this watch thinks I sleep, I'd never get anything done. I could go on and on. The fitness tracker works amazingly well for cycling and hiking and its step and distance measurements are spot on. There's a lot to like about this watch. A lot of nice touches. I would buy this again.
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Reviewed in the United States on December 11, 2025 by BT
Color: Orange
The watch itself is actually really nice. it feels well-built, comfortable fit to wear all day, and looks great on the wrist. For the price, I think it's a solid value in terms of hardware and overall design. The item works fine with the Nothing App, and my workouts show up correctly in both that app and Apple Health. However, the Exercise ring in the Apple Fitness app doesn’t update, even though the workouts meet all the usual criteria. Permissions are set, and other activity like walking is tracked with no issues. If you’re someone who relies on closing your Apple Fitness rings, this might be a dealbreaker. I really hope they fix this in a future update, because the watch itself is great otherwise and definitely worth the money.
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Reviewed in the United States on September 15, 2025 by Mottainai
Color: Dark Grey
So I am coming to this watch from an absolutely ancient Apple Watch 2. The battery on that finally bit the bullet and wouldn't charge anymore. Not wanting to spend the 200+ dollars on a new lower end Apple Watch, I decided to take the chance on this one after reading reviews and doing some research. First in terms of looks - This looks fantastic. The watch faces are modern and there are so many options - from more minimal to hyper functional - displaying most of the metrics you would want to see in a smart watch/fitness tracker. I got the dark grey version and it is very clean. There is minimal branding with small text displaying "CMF by Nothing" on the rim around the watch face, but it is barely noticeable. The screen is bright, and I always have mine set on adaptive brightness. I haven't had any issues seeing the screen during a bright day yet. The biggest plus for me is battery life! This thing will not die! The biggest issue I had with the Apple Watch was the battery life. Mine would die near the end of the day, even when the battery wasn't cooked from age. I had to constantly have it on the charge at the end of the day and never used its sleep tracking because the watch would be dead in the morning if I did. This definitely does not have that problem. I've worn this watch 3 days in a row without a charge, and even with pretty frequent use/checking it was still at 60ish percent. I usually charge it by putting it on the charger while I'm getting ready for work in the morning. It will go from 80ish percent to 95+ in the time I'm getting ready. I'm looking at the battery life right now - it is 2:30 in the afternoon and I've had the watch on me since I charged this morning around 6:30 - 95% battery life! In terms of tracking I can't speak much to the accuracy of the workout tracking, as I haven't really approached it with a hyper analytical eye. To me it seems pretty accurate. Sleep tracking seems pretty good, maybe a few minutes off, but that is negligible for my use case. Heart rate sensor seems pretty good, and in that case I was able to actually test it against another device made just for heart rate tracking, and it was only a few beats off, so pretty good there. In terms of using the device I've found it to be a pretty intuitive and easy to use smart watch. Swipe gestures to move around menus, it's very responsive, and the haptics are satisfying. Turning the crown control knob to scroll through menus has a very satisfying buzz at certain increments. It shows my notifications and allows for customization of what notifications come through. I have not used it to take phone calls on the watch itself - still prefer doing that on my actual phone. The only thing I did change about the watch is swapping out the wrist band for a more elastic nylon sport band - I've found silicon bands get a bit stuffy on my wrist and I like breathability of the nylon bands more. I also added a screen protector to the watch face to help prevent scratching. I have this watch connected to an IPhone 17 base, and have had no issues with connectivity or health tracking. You use install the Nothing app and connect the watch via bluetooth to the phone and app. My IPhone health app still shows the daily health metrics from the watch, and I haven't had any issues so far with errors or missing data. All in all, if you are looking for a more budget friendly smart watch or fitness tracker. I would definitely recommend this. If you are looking for a very fitness oriented smart device, this might not fit the bill.
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Reviewed in the United States on October 30, 2025 by KK