OnePlus · 2021
WatchSize, Dimensions & Wrist Fit
The OnePlus Watch sits best on flat wrist widths of about 49–66mm (≈ 13.1–17.6cm wrist circumference). Adjust the slider below to check your wrist.
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The Watch in short
The figures that decide whether this watch suits you, pulled out of the full specification sheet further down.
- Between 25 hours and 14 days per charge depending on the power mode — smartwatch at best, gps at worst.
- Water rated to 50 m.
- 45g on the wrist. Lighter than 71% of the 46mm watches we have weights for.
- 1.39 inches OLED/AMOLED display, always-on capable.
Does the Watch fit your wrist?
Drag the slider to your wrist width and see the Watch overlaid at true scale. Lug-to-lug — not case diameter — decides whether a watch overhangs your wrist.
Watch Fit Tool
For sports watches, lug-to-lug (L2L) is what matters most — it decides whether a watch overhangs your wrist. Bulky is fine; overhang is not.
Measure at the point where you wear your watch — typically just below the wrist bone.
Flat width — lay your arm on a table, palm facing up, and measure straight across the top of your wrist with a ruler. Bone to bone; do not follow the curve down the sides.
Around — wrap a tape measure snugly round the wrist. No tape? Wrap a strip of paper, mark the overlap and hold the strip against a ruler.
Width ≠ circumference. They are different numbers — around 170mm is about 64mm across — so set the toggle to whichever one you actually measured before you type it in.
OnePlus Watch
Case 46.4mm · Lug-to-lug 46.4mm · Thickness 10.9mm · 45g
Balanced Fit
46.4mm on a 55mm wrist
Comfortably inside the edges of your wrist, and it seats and sits low enough to wear without thinking about it.
On a 55mm wrist the sweet spot is 47–53mm lug to lug. This one is 46.4mm, so you could go bigger.
Measure where you wear it, just below the wrist bone. Either of these works — the tool converts between them.
- 1. Flat width — arm flat on a table, palm up. Measure straight across the top of the wrist, bone to bone, ignoring the curve down the sides.
- 2. Around — a tape, or a strip of paper marked and held against a ruler, snug the whole way round.
Leather: Attaches at the lugs, so the case back rests on your skin. Thins and softens with wear. Typical figures, not this model’s own.
Show the measurementsHide the measurements
- Across the wrist4.3mm spare each side
Comfortable, with visible skin either side.
- Off the wrist10.9mm off the skin
Normal sports-watch height for a wrist this size. (10.9mm case, back against the skin)
- How it seats~5.8mm under the rim
Seats well, with the case back following most of the wrist.
- Weight on the wrist45g
Light enough to forget you have it on. (0.8g per mm of wrist)
Happy with the fit? Check current availability for the Watch.
Check offer2D Dimension Schematics
The Watch drawn to scale — from above, and in profile against the wrist.
- OnePlus Watch46.4mm · 10.9mm thick
3D preview
OnePlus Watch on a wrist
On an arm sized to your own wrist — the view a product photo never gives you.
Shapes are built from published measurements, not manufacturer 3D models — accurate proportions, generic dial.
How long the Watch lasts, by power mode
Runtime changes by a factor of 13 depending on what you leave switched on. Bars are scaled against the longest mode.
- Smartwatch14 days
- Training25 hours
- GPS25 hours
How the Watch ranks on battery
No OnePlus in our database is rated for longer everyday (smartwatch) use.
- Everyday use14 days#1 of 7
- Capacity402 mAh#4 of 7
Top three in the OnePlus range for everyday (smartwatch) use.
Watch specifications
The figures that decide a purchase, followed by every line OnePlus publishes.
- Battery life
- 14 days
- Display
- 1.39 inches
- Resolution
- 454 x 454 px
- Water rating
- Waterproof
- Storage
- 4GB
- Charging
- 0.6 hours
Full specification sheet
101 published lines across 8 groups, unedited
Design
- width
- 46.4
- height
- 46.4
- volume
- 23.47 cm³
- weight
- 45 g
- thickness
- 10.9
- resolution
- 454 x 454 px
- screen size
- 1.39 inches
- Display type
- OLED/AMOLED
- Has a display
- pixel density
- 326 ppi
- water resistance
- Waterproof
- Always-On Display
- has a touch screen
- waterproof depth rating
- 50 m
- Watch band is replaceable
- Has sapphire glass display
- Ingress Protection (IP) rating
- IP68
- has branded damage-resistant glass
Battery
- charge time
- 0.6 hours
- battery life
- 14 days
- battery power
- 402 mAh
- has wireless charging
- has a removable battery
- battery life with GPS on
- 25 hours
- Has a solar power battery
- has a rechargeable battery
- battery life in training mode
- 25 hours
Sensors
- has GPS
- has a compass
- Has a barometer
- has a gyroscope
- Has a cadence sensor
- has an accelerometer
- Monitors perspiration
- Has a heart rate monitor
- Has a temperature sensor
- Monitors blood oxygenation levels
Features
- release date
- 2021-03-23
- Has a stopwatch
- Has smart alarm
- warranty period
- 1 years
- Has call control
- Has silent alarm
- internal storage
- 4GB
- Has notifications
- Has ECG technology
- Locates your phone
- has a front camera
- has fall detection
- has voice commands
- Acquires GPS faster
- Has vibrating alerts
- number of microphones
- 1
- Can be used to answer calls
- has irregular heart rate warnings
- Has a built-in camera remote control function
Connectivity
- has NFC
- supports ANT+
- supports Wi-Fi
- supports Galileo
- Bluetooth version
- 5
- has a cellular module
- Is compatible with iOS
- Is compatible with Android
Miscellaneous
- has aptX
- Has passcode
- Is compatible with Windows
- Is compatible with Mac OS X
- has an external memory slot
- has a battery level indicator
- has a socket for a 3.5 mm audio jack
- Compatible with external heart rate monitors
App & Software
- Ad-free
- Free app
- Has achievements
- Has goal setting
- Has exercise diary
- Predicts ovulation
- Has weight tracking
- Predicts start date
- Tracks water intake
- Has inactivity alerts
- Has period notifications
- Has temperature tracking
- Provides activity reports
- Displays fertile window notifications
- Counts how many calories you've burned
Activity tracking
- Measures pace
- Tracks distance
- Tracks elevation
- Designed for golf
- Tracks your sleep
- Tracks steps taken
- Designed for diving
- Has a route tracker
- Has exercise tagging
- Has multi-sport mode
- Tracks calorie intake
- Provides sleep reports
- Detects activities automatically
- Has a stroke counter for swimming
Alternatives to the Watch
Watches that cover a similar amount of wrist, with the measurements that separate them.
OnePlus
Watch 3
- Width
- 46.6mm
- Thick
- 11.8mm
- Weight
- 81g
OnePlus
Watch 2R
- Width
- 47mm
- Thick
- 12.1mm
- Weight
- 59g
OnePlus
Watch 2
- Width
- 47mm
- Thick
- 12.1mm
- Weight
- 80g
OnePlus
Watch Lite
- Width
- 45mm
- Thick
- 8.9mm
- Weight
- 35g
OnePlus
Watch 3 43mm
- Width
- 43.2mm
- Thick
- 11mm
- Weight
- 37.8g
OnePlus
Nord Watch
- Width
- 37.2mm
- Thick
- 10.4mm
- Weight
- 52.4g
Watch — Frequently Asked Questions
Will the OnePlus Watch fit my wrist?
The OnePlus Watch looks balanced on flat wrist widths of roughly 49–66mm (about 13.1–17.6cm circumference). Drag the slider above to check it against your own measurement.
How long does the OnePlus Watch battery last?
Between 25 hours and 14 days per charge, depending on the power mode. OnePlus rates Smartwatch at 14 days and GPS at 25 hours; the chart above lists all 3 modes.
How does the OnePlus Watch battery compare with other OnePlus watches?
At 14 days in everyday use it ranks #1 of the 7 OnePlus watches in our database — the longest-rated OnePlus we have data for. The full ranking, including GPS and power-saving figures, is on our OnePlus battery life comparison.
Is the OnePlus Watch thick for a 46mm watch?
At 10.9mm, thinner than 87% of 46mm watches, so it slides under a cuff more easily than most of its size. Thickness, not case width, is what decides whether a watch catches on a shirt cuff.
What other watches are the same size as the OnePlus Watch?
Honor Watch 5 Pro - Bluetooth, Huawei Watch GT 6 - 46mm, Samsung Galaxy Watch8 LTE Classic, Garmin Descent™ G2 all sit within half a millimetre of the OnePlus Watch's 46.4mm case, so they cover the same amount of wrist.
