Oppo · 2023
Watch 4 ProSize, Dimensions & Wrist Fit
Case Width
38.3mm
Thickness
12.9mm
Lug-to-Lug
50.1mm
Weight
52.3g
The Oppo Watch 4 Pro sits best on flat wrist widths of about 53–72mm (≈ 14.2–19.2cm wrist circumference). Adjust the slider below to check your wrist.
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The Watch 4 Pro in short
The figures that decide whether this watch suits you, pulled out of the full specification sheet further down.
- Between 60 hours and 5 days per charge depending on the power mode — smartwatch at best, training at worst.
- Water rated to 5 ATM.
- 52.3g on the wrist. Heavier than 88% of the 38mm watches we have weights for.
- 1.91 inches OLED/AMOLED display, always-on capable.
Does the Watch 4 Pro fit your wrist?
Drag the slider to your wrist width and see the Watch 4 Pro 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.
Oppo Watch 4 Pro
Case 50.1mm · Lug-to-lug 50.1mm · Thickness 12.9mm · 52g
Sweet Spot
50.1mm on a 55mm wrist
Across the wrist it works — 2.4mm spare each side — but wide enough that the edge of the case back lifts clear of the skin.
On a 55mm wrist the sweet spot is 47–53mm lug to lug. This one is 50.1mm.
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 wrist2.4mm spare each side
Fills the wrist without reaching the edge.
- Off the wrist12.9mm off the skin
Normal sports-watch height for a wrist this size. (12.9mm case, back against the skin)
- How it seats~8.1mm under the rim
Wide enough that the edge of the case back lifts clear of the skin.
- Weight on the wrist52g
Light enough to forget you have it on. (1.0g per mm of wrist)
Happy with the fit? Check current availability for the Watch 4 Pro.
Check offer2D Dimension Schematics
The Watch 4 Pro drawn to scale — from above, and in profile against the wrist.
- Oppo Watch 4 Pro38.3mm × 50.1mm · 12.9mm thick
3D preview
Oppo Watch 4 Pro 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 4 Pro lasts, by power mode
Runtime changes by a factor of 2 depending on what you leave switched on. Bars are scaled against the longest mode.
- Smartwatch5 days
- Training60 hours
How the Watch 4 Pro ranks on battery
Against the 15 Oppo watches in our database, ranked on each figure Oppo publishes.
- Everyday use5 days#6 of 15
- Capacity570 mAh#3 of 14
Top three in the Oppo range for battery capacity.
Watch 4 Pro specifications
The figures that decide a purchase, followed by every line Oppo publishes.
- Battery life
- 5 days
- Display
- 1.91 inches
- Resolution
- 378 x 496 px
- Water rating
- 5 ATM
- Storage
- 32GB
- Charging
- 1 hours
Full specification sheet
99 published lines across 8 groups, unedited
Design
- width
- 38.3
- height
- 50.1
- volume
- 24.75 cm³
- weight
- 52.3 g
- thickness
- 12.9
- ATM rating
- 5 ATM
- resolution
- 378 x 496 px
- screen size
- 1.91 inches
- Display type
- OLED/AMOLED
- Has a display
- pixel density
- 326 ppi
- water resistance
- Water resistant
- Always-On Display
- has a touch screen
- Watch band is replaceable
- Has sapphire glass display
- has branded damage-resistant glass
Battery
- charge time
- 1 hours
- battery life
- 5 days
- battery power
- 570 mAh
- has wireless charging
- has a removable battery
- Has a solar power battery
- has a rechargeable battery
- battery life in training mode
- 60 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
- RAM
- 2GB
- release date
- 2023-08-29
- Has a stopwatch
- Has smart alarm
- Has call control
- Has silent alarm
- internal storage
- 32GB
- Has notifications
- Has ECG technology
- Locates your phone
- 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
- SIM cards
- 1 eSIM
- Wi-Fi version
- Wi-Fi 4 (802.11n)
- supports ANT+
- supports Wi-Fi
- Bluetooth version
- 5
- has a cellular module
- Is compatible with iOS
- Is compatible with Android
Miscellaneous
- Has passcode
- Has auto pause
- 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 coaching
- 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
- Doesn’t require account
- 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
Compare the Watch 4 Pro head to head
How each one differs in the three measurements you can feel on the wrist. Figures are relative to the Watch 4 Pro.
Oppo
Watch S
- Width
- +6.7mm
- Thick
- -4mm
- Weight
- -17.3g
Apple
Watch SE 3 - GPS · 44mm
- Width
- -0.3mm
- Thick
- -2.2mm
- Weight
- -19.4g
Huawei
Watch Fit 4
- Width
- -0.3mm
- Thick
- -3.4mm
- Weight
- -25.3g
Oppo
Watch X2 Mini
- Width
- +4.9mm
- Thick
- -1.9mm
- Weight
- -14.5g
Garmin
Lily 2 Active
- Width
- -0.3mm
- Thick
- -1.9mm
- Weight
- -23.3g
Alternatives to the Watch 4 Pro
Watches that cover a similar amount of wrist, with the measurements that separate them.
Oppo
Watch 2 - 42mm
- Width
- 38.1mm
- Thick
- 11.6mm
- Weight
- 31g
Oppo
Watch 3 Pro
- Width
- 38.5mm
- Thick
- 12.7mm
- Weight
- 37.5g
Oppo
Watch 3
- Width
- 38.5mm
- Thick
- 12.7mm
- Weight
- 37.5g
Oppo
Watch 2 - 46mm · 46.4mm
- Width
- 38.5mm
- Thick
- 11.6mm
- Weight
- 35g
Oppo
Watch - 41mm
- Width
- 36.4mm
- Thick
- 11.4mm
- Weight
- 29.7g
Oppo
Watch SE
- Width
- 43mm
- Thick
- 11.65mm
- Weight
- 31g
Watch 4 Pro — Frequently Asked Questions
Will the Oppo Watch 4 Pro fit my wrist?
The Oppo Watch 4 Pro looks balanced on flat wrist widths of roughly 53–72mm (about 14.2–19.2cm circumference). Drag the slider above to check it against your own measurement.
How long does the Oppo Watch 4 Pro battery last?
Between 60 hours and 5 days per charge, depending on the power mode. Oppo rates Smartwatch at 5 days and Training at 60 hours; the chart above lists all 2 modes.
How does the Oppo Watch 4 Pro battery compare with other Oppo watches?
At 5 days in everyday use it ranks #6 of the 15 Oppo watches in our database — the top 40% of the range. The full ranking, including GPS and power-saving figures, is on our Oppo battery life comparison.
Is the Oppo Watch 4 Pro thick for a 38mm watch?
At 12.9mm, thicker than 84% of 38mm watches — it will sit noticeably high on the wrist. Thickness, not case width, is what decides whether a watch catches on a shirt cuff.
What other watches are the same size as the Oppo Watch 4 Pro?
Apple Watch SE 3 - GPS + Cellular · 44mm, Huawei Watch Fit 4, Certina DS Action Diver 38 Powermatic 80 PVD / Black, Omega Railmaster Omega Co-Axial Master Chronometer 38 Stainless Steel / Grey Gradient all sit within half a millimetre of the Oppo Watch 4 Pro's 38.3mm case, so they cover the same amount of wrist.
What is the lug-to-lug of the Oppo Watch 4 Pro?
50.1mm, against a 38.3mm case width. Lug-to-lug is the measurement that decides overhang: if it exceeds the flat width of your wrist, the lugs sit past the edge no matter how modest the case diameter looks.
