Oppo · 2025
Watch SSize, Dimensions & Wrist Fit
The Oppo Watch S sits best on flat wrist widths of about 47–64mm (≈ 12.6–17.1cm wrist circumference). Adjust the slider below to check your wrist.
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The Watch S in short
The figures that decide whether this watch suits you, pulled out of the full specification sheet further down.
- Rated for 7 days of use per charge.
- Water rated to 1.5 m.
- 35g on the wrist. Lighter than 99% of the 45mm watches we have weights for.
- 1.46 inches OLED/AMOLED display.
- Takes 22mm bands, so third-party straps fit without an adapter.
Does the Watch S fit your wrist?
Drag the slider to your wrist width and see the Watch S 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 S
Case 45.0mm · Lug-to-lug 45.0mm · Thickness 8.9mm · 35g
Balanced Fit
45mm 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 45mm, 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 wrist5.0mm spare each side
Comfortable, with visible skin either side.
- Off the wrist8.9mm off the skin
Sits low enough to disappear under a cuff. (8.9mm case, back against the skin)
- How it seats~5.2mm under the rim
Seats well, with the case back following most of the wrist.
- Weight on the wrist35g
Light enough to forget you have it on. (0.6g per mm of wrist)
Happy with the fit? Check current availability for the Watch S.
Check offer2D Dimension Schematics
The Watch S drawn to scale — from above, and in profile against the wrist.
- Oppo Watch S45mm · 8.9mm thick
3D preview
Oppo Watch S 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.
Watch S battery life
The runtime the manufacturer publishes for everyday use.
- Smartwatch7 days
How the Watch S ranks on battery
Against the 15 Oppo watches in our database, ranked on each figure Oppo publishes.
- Everyday use7 days#5 of 15
- Capacity339 mAh#13 of 14
What size band does the Watch S take?
Lug width
22mm
Any 22mm strap fits, so you are not restricted to Oppo's own bands. Quick-release pins let you swap without tools — check that a replacement lists 22mm and quick-release before buying.
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Watch S specifications
The figures that decide a purchase, followed by every line Oppo publishes.
- Battery life
- 7 days
- Display
- 1.46 inches
- Resolution
- 464 x 464 px
- Water rating
- 5 ATM
- Strap
- 22 mm
- Storage
- 4GB
Full specification sheet
104 published lines across 8 groups, unedited
Design
- width
- 45
- height
- 45
- volume
- 18.02 cm³
- weight
- 35 g
- thickness
- 8.9
- ATM rating
- 5 ATM
- resolution
- 464 x 464 px
- screen size
- 1.46 inches
- Display type
- OLED/AMOLED
- Has a display
- pixel density
- 317 ppi
- width of band
- 22 mm
- water resistance
- Waterproof
- Always-On Display
- has a touch screen
- is designed for kids
- waterproof depth rating
- 1.5 m
- Watch band is replaceable
- Has sapphire glass display
- Ingress Protection (IP) rating
- IP68
- has branded damage-resistant glass
Battery
- battery life
- 7 days
- battery power
- 339 mAh
- has wireless charging
- has a removable battery
- Has a solar power battery
- has a rechargeable battery
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
- 2025-10-16
- Has a stopwatch
- Has smart alarm
- warranty period
- 1 years
- Has call control
- Has silent alarm
- has HRV tracking
- internal storage
- 4GB
- measures VO2 max
- 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
- 0
- shows readiness level
- Can be used to answer calls
- measures resting heart rate
- has irregular heart rate warnings
- has fast/slow heart rate notifications
- Has a built-in camera remote control function
Connectivity
- has NFC
- supports ANT+
- supports Wi-Fi
- supports Galileo
- Bluetooth version
- 5.2
- has a cellular module
- Is compatible with iOS
- Is compatible with Android
Miscellaneous
- 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
App & Software
- Ad-free
- Free app
- Has coaching
- Supports routes
- Has achievements
- Has goal setting
- Has exercise diary
- Can be personalised
- Has weight tracking
- Tracks water intake
- Has inactivity alerts
- Has period notifications
- Has temperature tracking
- Doesn’t require account
- Provides activity reports
- 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
- Tracks calorie intake
- Provides sleep reports
- Detects activities automatically
- Has a stroke counter for swimming
Compare the Watch S head to head
How each one differs in the three measurements you can feel on the wrist. Figures are relative to the Watch S.
Oppo
Watch X3
- Width
- +2.4mm
- Thick
- +2.1mm
- Weight
- +8g
OnePlus
Watch Lite
- Width
- same mm
- Thick
- same mm
- Weight
- same g
Garmin
Venu 4 45mm
- Width
- same mm
- Thick
- +3.6mm
- Weight
- +3g
Oppo
Watch X2 Mini
- Width
- -1.8mm
- Thick
- +2.1mm
- Weight
- +2.8g
Oppo
Watch X
- Width
- +1.6mm
- Thick
- +3.2mm
- Weight
- +14g
Alternatives to the Watch S
Watches that cover a similar amount of wrist, with the measurements that separate them.
Oppo
Watch - 39mm · Stainless Steel
- Width
- 46mm
- Thick
- 11.4mm
- Weight
- 45.5g
Oppo
Watch - 46mm
- Width
- 46mm
- Thick
- 11.4mm
- Weight
- 40g
Oppo
Watch X
- Width
- 46.6mm
- Thick
- 12.1mm
- Weight
- 49g
Oppo
Watch X2 Mini
- Width
- 43.2mm
- Thick
- 11mm
- Weight
- 37.8g
Oppo
Watch SE
- Width
- 43mm
- Thick
- 11.65mm
- Weight
- 31g
Oppo
Watch X3
- Width
- 47.4mm
- Thick
- 11mm
- Weight
- 43g
Watch S — Frequently Asked Questions
Will the Oppo Watch S fit my wrist?
The Oppo Watch S looks balanced on flat wrist widths of roughly 47–64mm (about 12.6–17.1cm circumference). Drag the slider above to check it against your own measurement.
What size band does the Oppo Watch S take?
22mm. Any 22mm strap fits, so you are not limited to Oppo's own bands — look for a quick-release fitting if you want to swap without tools.
How long does the Oppo Watch S battery last?
Oppo rates it at 7 days per charge in everyday use.
How does the Oppo Watch S battery compare with other Oppo watches?
At 7 days in everyday use it ranks #5 of the 15 Oppo watches in our database — the top 33% of the range. The full ranking, including GPS and power-saving figures, is on our Oppo battery life comparison.
Is the Oppo Watch S thick for a 45mm watch?
At 8.9mm, thinner than 100% of 45mm 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 Oppo Watch S?
OnePlus Watch Lite, Garmin D2 Air X15, Google Pixel Watch 4 - 45mm, Tissot T-Race Chronograph PVD / Black / Rubber all sit within half a millimetre of the Oppo Watch S's 45mm case, so they cover the same amount of wrist.
