Oppo Watch S vs Watch X
Size, specs & wrist fit compared
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Which one fits you
On wrists narrower than about 49mm, the Watch S is the safer pick — it stays proportionate down to roughly 47mm, where the Watch X starts to hang over the edge. Above 49mm both sit cleanly, and the Watch X gives you more presence.
The Watch X wears larger than the Watch S (46.6mm vs 45mm case), giving it more wrist presence — and needing a wider wrist to sit cleanly.
The Watch S is the slimmer of the two (8.9mm vs 12.1mm), so it slides under a cuff more easily.
On the wrist the Watch S feels lighter (35g vs 49g, case only).
Among the 385 45mm watches we hold thickness for, the Watch S is thinner than 100%, so it wears flatter than its width suggests.
The Watch X is middle-of-the-pack for thickness among the 121 47mm watches in the database.
The Watch X is 1.6mm wider, 2mm longer, 3.2mm thicker and 14g heavier than the Watch S. Both are circular.
Watch S
Watch X
Switch or add watches
Oppo
Watch S
Oppo
Watch X
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)
Oppo Watch X
Case 46.6mm · Lug-to-lug 47.0mm · Thickness 12.1mm · 49g
Sweet Spot
47mm on a 55mm wrist
47.0mm across a wrist that has the room for it, and nothing else about the case argues with the size.
On a 55mm wrist the sweet spot is 47–53mm lug to lug. This one is 47mm.
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 wrist4.0mm spare each side
Fills the wrist without reaching the edge.
- Off the wrist12.1mm off the skin
Normal sports-watch height for a wrist this size. (12.1mm case, back against the skin)
- How it seats~5.9mm under the rim
Seats well, with the case back following most of the wrist.
- Weight on the wrist49g
Light enough to forget you have it on. (0.9g per mm of wrist)
2D Dimension Schematics
Every case drawn to scale on a shared centre — from above, and in profile against the wrist.
- Oppo Watch S45mm · 8.9mm thick
- Oppo Watch X46.6mm × 47mm · 12.1mm thick
3D preview
Watch S vs Watch X on a wrist
Sized to your own wrist, turned any way you like.
Shapes are built from published measurements, not manufacturer 3D models — accurate proportions, generic dial.
Battery life compared
Furthest apart in Smartwatch mode, where the S lasts 3.5× as long as the X (7 days against 2 days).
SX
Battery Saver
—288 hoursSmartwatch
7 days2 days
Specifications
The short version
10 key specs| Spec | OppoWatch S | OppoWatch X |
|---|---|---|
| Case Width | 45mm | 46.6mm |
| Thickness | 8.9mm | 12.1mm |
| Weight | 35g | 49g |
| Shape | Circular | Circular |
| Water Resistance | 5 ATM | 5 ATM |
| GPS | Yes | Yes |
| Display type | OLED/AMOLED | OLED/AMOLED |
| Screen size | 1.46 inches | 1.43 inches |
| Battery life | 7 days | 2 days |
| Released | 2025 | 2024 |
Every specification
111 specs| Spec | Oppo Watch S | Oppo Watch X |
|---|---|---|
| Design | ||
| width | 45 | 46.6 |
| height | 45 | 47 |
| volume | 18.02 cm³ | 26.5 cm³ |
| weight | 35 g | 49 g |
| thickness | 8.9 | 12.1 |
| ATM rating | 5 ATM | 5 ATM |
| resolution | 464 x 464 px | 466 x 466 px |
| screen size | 1.46 inches | 1.43 inches |
| Display type | OLED/AMOLED | OLED/AMOLED |
| Has a display | Yes | Yes |
| pixel density | 317 ppi | 326 ppi |
| width of band | 22 mm | — |
| water resistance | Waterproof | Waterproof |
| Always-On Display | No | Yes |
| has a touch screen | Yes | Yes |
| is designed for kids | No | No |
| waterproof depth rating | 1.5 m | 50 m |
| Watch band is replaceable | Yes | Yes |
| Has sapphire glass display | No | Yes |
| Ingress Protection (IP) rating | IP68 | IP67 |
| has branded damage-resistant glass | No | No |
| maximum operating temperature | — | 70 °C |
| lowest potential operating temperature | — | -40 °C |
| Battery | ||
| battery life | 7 days | 2 days |
| battery power | 339 mAh | 500 mAh |
| has wireless charging | No | No |
| has a removable battery | No | No |
| Has a solar power battery | No | No |
| has a rechargeable battery | Yes | Yes |
| charge time | — | 1 hours |
| battery life in power save mode | — | 288 hours |
| Sensors | ||
| has GPS | Yes | Yes |
| has a compass | Yes | Yes |
| Has a barometer | Yes | Yes |
| has a gyroscope | Yes | Yes |
| Has a cadence sensor | No | No |
| has an accelerometer | Yes | Yes |
| Monitors perspiration | No | No |
| Has a heart rate monitor | Yes | Yes |
| Has a temperature sensor | Yes | No |
| Monitors blood oxygenation levels | Yes | Yes |
| Features | ||
| release date | 2025-10-16 | 2024-02-29 |
| Has a stopwatch | Yes | Yes |
| Has smart alarm | No | No |
| warranty period | 1 years | 1 years |
| Has call control | Yes | Yes |
| Has silent alarm | Yes | Yes |
| has HRV tracking | Yes | No |
| internal storage | 4GB | 32GB |
| measures VO2 max | Yes | Yes |
| Has notifications | Yes | Yes |
| Has ECG technology | Yes | No |
| Locates your phone | No | Yes |
| has a front camera | No | No |
| has fall detection | No | No |
| has voice commands | Yes | Yes |
| Acquires GPS faster | Yes | Yes |
| Has vibrating alerts | Yes | Yes |
| number of microphones | 0 | — |
| shows readiness level | Yes | No |
| Can be used to answer calls | Yes | Yes |
| measures resting heart rate | Yes | Yes |
| has irregular heart rate warnings | Yes | No |
| has fast/slow heart rate notifications | Yes | Yes |
| Has a built-in camera remote control function | Yes | — |
| RAM | — | 2GB |
| Connectivity | ||
| has NFC | No | Yes |
| supports ANT+ | No | No |
| supports Wi-Fi | No | Yes |
| supports Galileo | Yes | Yes |
| Bluetooth version | 5.2 | 5 |
| has a cellular module | No | No |
| Is compatible with iOS | Yes | Yes |
| Is compatible with Android | Yes | Yes |
| Wi-Fi version | — | Wi-Fi 4 (802.11n) |
| Miscellaneous | ||
| Has passcode | Yes | Yes |
| Is compatible with Windows | No | No |
| Is compatible with Mac OS X | No | No |
| has an external memory slot | No | No |
| has a battery level indicator | Yes | Yes |
| has a socket for a 3.5 mm audio jack | Yes | No |
| App & Software | ||
| Ad-free | Yes | Yes |
| Free app | Yes | Yes |
| Has coaching | No | No |
| Supports routes | No | No |
| Has achievements | Yes | Yes |
| Has goal setting | Yes | Yes |
| Has exercise diary | Yes | Yes |
| Can be personalised | Yes | Yes |
| Has weight tracking | Yes | Yes |
| Tracks water intake | Yes | Yes |
| Has inactivity alerts | Yes | Yes |
| Has period notifications | Yes | — |
| Has temperature tracking | Yes | No |
| Doesn’t require account | No | No |
| Provides activity reports | Yes | Yes |
| Counts how many calories you've burned | Yes | Yes |
| Activity tracking | ||
| Measures pace | Yes | Yes |
| Tracks distance | Yes | Yes |
| Tracks elevation | Yes | Yes |
| Designed for golf | No | No |
| Tracks your sleep | Yes | Yes |
| Tracks steps taken | Yes | Yes |
| Designed for diving | No | No |
| Has a route tracker | Yes | Yes |
| Has exercise tagging | Yes | Yes |
| Tracks calorie intake | Yes | Yes |
| Provides sleep reports | Yes | Yes |
| Detects activities automatically | Yes | Yes |
| Has a stroke counter for swimming | Yes | — |
| Has multi-sport mode | — | No |
Wrist Fit
Oppo Watch S
Sits best on wrists ~47–64mm wide (≈ 12.6–17.1cm circumference).
Oppo Watch X
Sits best on wrists ~49–67mm wide (≈ 13.1–17.9cm circumference).
Frequently Asked Questions
Is the Oppo Watch S bigger than the Oppo Watch X?
The Oppo Watch X is bigger — 46.6mm vs 45mm case width.
Which fits a smaller wrist better, the Oppo Watch S or the Oppo Watch X?
The Oppo Watch S suits wrists around 47–64mm wide, and the Oppo Watch X around 49–67mm. The one with the smaller lower bound is the safer pick for a small wrist.
Can I see the Oppo Watch S and Oppo Watch X side by side at true scale?
Yes — the schematics and photos above show both watches at matched scale, and our fit tool overlays each on your wrist width.