Mobile / Smartwatches
CMFSmartwatch
Watch 3 Pro
Released July 2025.6Press articlegsmarena.com/cmf_watch_3_pro_launches_with_bigger_143_screen_longer_battery_life_and_higher_price_tag-news-68721.phpRead 8 October 2026Published 22 July 2025. Reports launch and availability in several countries. Dark Grey is named in the launch colour table. Last checked 8 October 2026.
- Case size
- 47mm
- Platform
- Proprietary
- Display type
- OLED
- Battery life
- 312h
73 of 150 fields known.
General
- Model numbers
- D3992Owner's manualdevice.report/m/8c2f45d7b97f7ec2090e0664e6261cb2da3e796a2be0c7412d067c82e791e69d_optim.pdfRead 8 October 2026
- GTIN / EAN
- Not available
- Announced
- 22 July 20256Press articlegsmarena.com/cmf_watch_3_pro_launches_with_bigger_143_screen_longer_battery_life_and_higher_price_tag-news-68721.phpRead 8 October 2026
- Predecessor
- Not available
- Successor
- Not available
- Markets
- Not available
- OS updates promised
- Not available
- Security updates until
- Not available
Case
- Case shape
- Round6Press articlegsmarena.com/cmf_watch_3_pro_launches_with_bigger_143_screen_longer_battery_life_and_higher_price_tag-news-68721.phpRead 8 October 20268Reviewtechradar.com/health-fitness/smartwatches/cmf-watch-3-pro-reviewRead 8 October 2026Design and display section describes the circular display and circular watch design.
- Case material
- Aluminium5Spec databasegsmarena.com/nothing_cmf_watch_3_pro-14217.phpRead 8 October 2026Build row identifies an aluminium frame. Maker design table identifies the body as metal.
- Case material (as published)
- Metal body1Maker product pageus.nothing.tech/products/cmf-watch-3-proRead 8 October 2026
- Back
- Not available
- Case dimensions
- Width47Thickness14.4mm(1.9 × 0.6 in)1Maker product pageus.nothing.tech/products/cmf-watch-3-proRead 8 October 2026Design table, Dark Grey and Light Green: width 4.7 cm and depth 1.44 cm. The published height of 25.8 cm includes the open strap and is excluded from case height.
- Weight (case only)
- Not available
- Weight with strap
- Not available
Durability
- Water resistance
- Not available
- Water resistance standard
- IEC 605291Maker product pageus.nothing.tech/products/cmf-watch-3-proRead 8 October 2026
- Dive rating
- Not available
- Max dive depth
- Not available
- MIL-STD-810
- Not available
- MIL-STD-810 tests
- Not available
- Operating temperature
- Not available
Display
- Display type (as published)
- AMOLED1Maker product pageus.nothing.tech/products/cmf-watch-3-proRead 8 October 2026
- Screen size
- 1.43in(3.6 cm)1Maker product pageus.nothing.tech/products/cmf-watch-3-proRead 8 October 2026
- Resolution
- 466 × 466px1Maker product pageus.nothing.tech/products/cmf-watch-3-proRead 8 October 2026
- Display area
- Not available
- Touchscreen
- Yes2Owner's manualdevice.report/m/8c2f45d7b97f7ec2090e0664e6261cb2da3e796a2be0c7412d067c82e791e69d_optim.pdfRead 8 October 2026
- Max refresh rate
- 60Hz1Maker product pageus.nothing.tech/products/cmf-watch-3-proRead 8 October 2026Display refresh table publishes 60 FPS as the refresh rate.
- Min refresh rate
- Not available
- Peak brightness
- 670nits1Maker product pageus.nothing.tech/products/cmf-watch-3-proRead 8 October 2026Display table: 650 nits typical, up to 670 nits. Screen area and ambient-light conditions are not specified.
- Minimum brightness
- Not available
- Always-on display
- Yes1Maker product pageus.nothing.tech/products/cmf-watch-3-proRead 8 October 2026
- Display cover
- Other glass1Maker product pageus.nothing.tech/products/cmf-watch-3-proRead 8 October 2026
- Display cover (as published)
- Glass1Maker product pageus.nothing.tech/products/cmf-watch-3-proRead 8 October 2026
Platform
- Platform
- Proprietary8Reviewtechradar.com/health-fitness/smartwatches/cmf-watch-3-pro-reviewRead 8 October 2026Features section identifies proprietary Nothing software.
- OS at launch
- Not available
- Software
- Not available
- Latest OS
- Not available
- Works with
- iOS, Android1Maker product pageus.nothing.tech/products/cmf-watch-3-proRead 8 October 2026
- Phone requirement
- Android 6.0 or later, or iOS 13 or later. Uses the Nothing X app.1Maker product pageus.nothing.tech/products/cmf-watch-3-proRead 8 October 2026
- Voice assistants
- Paired phone voice assistant, ChatGPT1Maker product pageus.nothing.tech/products/cmf-watch-3-proRead 8 October 2026Other features table lists Voice Assistant. The ChatGPT section and footnote 15 state ChatGPT integration and require Nothing OS. Most connected functions require the paired smartphone.12Maker product pagesupport.nothing.tech/hc/en-us/articles/37233005379217-How-to-use-ChatGPT-on-my-watchRead 8 October 2026ChatGPT is available only to Nothing phone users. The paired phone needs the ChatGPT app, a logged-in account, microphone permission and a selected conversation voice. Enable ChatGPT through the Nothing X app.
- Chipset
- Not available
- Process
- Not available
- CPU cores
- Not available
- CPU configuration
- Not available
- Max CPU clock
- Not available
- GPU
- Not available
- Low-power coprocessor
- Not available
Memory
- RAM
- Not available
Health sensors
- Heart rate sensor
- Optical heart rate and blood oxygen sensor1Maker product pageus.nothing.tech/products/cmf-watch-3-proRead 8 October 2026
- Blood oxygen sensing
- Yes1Maker product pageus.nothing.tech/products/cmf-watch-3-proRead 8 October 2026
- Skin temperature sensing
- No9Reviewwareable.com/smartwatches/cmf-watch-3-pro-reviewRead 8 October 2026Health and sleep tracking section explicitly states there is no built-in temperature sensor.
- Blood pressure feature
- Not available
- Body composition sensor
- Not available
- Skin conductance (EDA)
- Not available
- Medical clearances
- Not available
Motion and environment sensors
- Accelerometer range
- Not available
- Barometric altimeter
- Not available
- Compass
- Not available
- Ambient light sensor
- Yes1Maker product pageus.nothing.tech/products/cmf-watch-3-proRead 8 October 20262Owner's manualdevice.report/m/8c2f45d7b97f7ec2090e0664e6261cb2da3e796a2be0c7412d067c82e791e69d_optim.pdfRead 8 October 2026
- Depth gauge
- Not available
- Depth gauge range
- Not available
- Water temperature sensor
- Not available
Health and fitness
- Health features
- Continuous heart rate, Heart rate alerts, Blood oxygen app, Sleep tracking, Sleep stages, Stress tracking, Cycle tracking3Maker product pagesupport.nothing.tech/hc/en-us/sections/31667497585169-Product-FeatureRead 8 October 2026Health monitoring and Enhanced sleep tracking articles list heart rate monitoring and alerts, blood oxygen, stress and sleep stages. The cycle-tracking article uses manually entered cycle data.
- Fitness features
- Automatic workout detection, VO2 max, Training load, Recovery advice3Maker product pagesupport.nothing.tech/hc/en-us/sections/31667497585169-Product-FeatureRead 8 October 2026Workout Detection, VO2 Max, Training Load and Recovery Time articles. Automatic detection supports indoor/outdoor running and walking, outdoor cycling, elliptical and rowing. VO2 max needs a moderate or harder running or cycling session of about 15 minutes.
- Dive modes
- Not available
- External sensors
- Not available
Safety
We could not find any of these 6 fields. Show them
- Fall detection
- Not available
- Car crash detection
- Not available
- Emergency SOS
- Not available
- Emergency siren
- Not available
- Live location sharing
- Not available
- Dedicated LED flashlight
- Not available
Positioning
- Positioning
- GPS L1 + L5, GLONASS, Galileo, QZSS, BeiDou1Maker product pageus.nothing.tech/products/cmf-watch-3-proRead 8 October 2026
- Offline maps
- Not available
Connectivity
- Bluetooth version
- 5.31Maker product pageus.nothing.tech/products/cmf-watch-3-proRead 8 October 2026
- Wi-Fi standard
- Not available
- Wi-Fi bands
- Not available
- Network
- Not available
- 4G bands
- Not available
- 5G bands
- Not available
- Contactless payments
- No4Maker product pagesupport.nothing.tech/hc/en-us/articles/37210042924689-Does-Watch-3-Pro-support-NFCRead 8 October 2026The watch does not support NFC.
- Payment services
- Not available
- Ultra-wideband
- Not available
- Satellite
- Not available
- ANT+
- Not available
Audio
- Speaker
- Yes1Maker product pageus.nothing.tech/products/cmf-watch-3-proRead 8 October 20262Owner's manualdevice.report/m/8c2f45d7b97f7ec2090e0664e6261cb2da3e796a2be0c7412d067c82e791e69d_optim.pdfRead 8 October 2026
- Microphones
- 21Maker product pageus.nothing.tech/products/cmf-watch-3-proRead 8 October 2026Calling section states two MEMS microphones. The D399 guide also labels both microphones.2Owner's manualdevice.report/m/8c2f45d7b97f7ec2090e0664e6261cb2da3e796a2be0c7412d067c82e791e69d_optim.pdfRead 8 October 20266Press articlegsmarena.com/cmf_watch_3_pro_launches_with_bigger_143_screen_longer_battery_life_and_higher_price_tag-news-68721.phpRead 8 October 2026
Controls
- Named operating buttons
- Not available
- Gestures
- Cover screen with palm, Wrist flip, Double shake2Owner's manualdevice.report/m/8c2f45d7b97f7ec2090e0664e6261cb2da3e796a2be0c7412d067c82e791e69d_optim.pdfRead 8 October 2026English Operations panel supports covering the watch with a palm to turn the screen off. Gesture Control is configured through Nothing X.6Press articlegsmarena.com/cmf_watch_3_pro_launches_with_bigger_143_screen_longer_battery_life_and_higher_price_tag-news-68721.phpRead 8 October 2026
Battery and charging
- Battery capacity
- 350mAh1Maker product pageus.nothing.tech/products/cmf-watch-3-proRead 8 October 2026
- Claimed battery life
Mode With solar Hours (h) Smartwatch No 312 Heavy use No 240 Always-on No 108 Low power No 1,440 GPS No 17.2 Source1Maker product pageus.nothing.tech/products/cmf-watch-3-proRead 8 October 2026Current Battery table: typical 13 days, heavy 10 days, AOD plus heavy 4.5 days, power saving 60 days, GPS 17.2 hours. Days are converted exactly to hours. Typical and heavy modes include 120 minutes GPS and 30 minutes Bluetooth calls per week. Typical includes heart rate every five minutes, 100 screen activations and 100 message views per day. Heavy adds 200 screen activations and message views, six daily manual heart rate and SpO2 checks, and automatic stress and SpO2 every 30 minutes. AOD daily duration and continuous-GPS band settings are not stated here. These are maker laboratory claims. The support FAQ differs: 10.5 days heavy and 4.4 days with 12 hours daily AOD. Current product claims are retained.11Maker product pagesupport.nothing.tech/hc/en-us/articles/37210046005777-How-long-does-Watch-3-Pro-s-battery-lastRead 8 October 2026The FAQ differs from the current product table: 10.5 days heavy use and 4.4 days with heavy use plus 12 hours daily AOD. It agrees on 13 days typical use. The current product table claims of 10 days heavy and 4.5 days AOD are retained. The FAQ AOD schedule is not transferred to the product table claim.- Smartwatch mode (claimed)
- 312h
- AOD battery life (up to)
- 108h
- GPS mode (claimed)
- 17.2h
- Solar charging
- Not available
- Charging method
- Magnetic pins2Owner's manualdevice.report/m/8c2f45d7b97f7ec2090e0664e6261cb2da3e796a2be0c7412d067c82e791e69d_optim.pdfRead 8 October 2026English Charge panel: two metal pads on the watch align with the metal tips on the charging cable.8Reviewtechradar.com/health-fitness/smartwatches/cmf-watch-3-pro-reviewRead 8 October 2026Performance section identifies the magnetic charging puck. The D399 guide separately establishes two metal contacts at the watch.
- Charging guidance
- Not available
- Max charging power (watch)
- Not available
- Fast charging
- Not available
- Quick charge claim
- Not available
- Charge 0 to 80% (claimed)
- Not available
Measured
We could not find any of these 4 fields. Show them
- Peak brightness (measured)
- Not available
- Battery life (measured)
- Not available
- Battery tests (measured)
- Not available
- Full charge time (measured)
- Not available
Strap
- Strap system
- Standard 22 mm quick-release straps7Reviewgsmarena.com/cmf_watch_3_pro_in_for_review-news-69839.phpRead 8 October 2026
- Strap material
- Silicone1Maker product pageus.nothing.tech/products/cmf-watch-3-proRead 8 October 2026Design table describes a liquid silicon strap. The product text identifies it as silicone.
- Strap
- Not available
- Strap sizes
- Not available
Regulatory
We could not find any of these 4 fields. Show them
- FCC ID
- Not available
- SAR limb (US)
- Not available
- SAR limb (EU)
- Not available
- Other certifications
- Not available
In the box
- In the box
- CMF Watch 3 Pro, Charging cable, User guide and safety information, Warranty information1Maker product pageus.nothing.tech/products/cmf-watch-3-proRead 8 October 2026
Links
- Product page
- us.nothing.tech/products/cmf-watch-3-pro1Maker product pageus.nothing.tech/products/cmf-watch-3-proRead 8 October 2026
- Spec sheet
- Not available
- Manual
- device.report/m/8c2f45d7b97f7ec2090e0664e6261cb2da3e796a2be0c7412d067c82e791e69d_optim.pdf2Owner's manualdevice.report/m/8c2f45d7b97f7ec2090e0664e6261cb2da3e796a2be0c7412d067c82e791e69d_optim.pdfRead 8 October 2026Original maker foldout, version 2, MODEL D399 and WATCH 3 PRO. English panels appear on the single multilingual PDF page.
- EPREL registration number
- Not available
Warranty
We could not find any of these 1 fields. Show them
- Manufacturer warranty (source market)
- Not available
Compare with
Pick a smartwatch to see both side by side. Differences are marked yellow.
Sources
We read 12 sources for this smartwatch. The numbers match the markers in the sheet.
- Maker product pageus.nothing.tech/products/cmf-watch-3-pro
- Maker product pagesupport.nothing.tech/hc/en-us/sections/31667497585169-Product-Feature
- Spec databasegsmarena.com/nothing_cmf_watch_3_pro-14217.php
See a wrong value? Tell us and name the field.