Huawei Watch Ultimate 2 vs Samsung Galaxy Watch Ultra
Size, specs & wrist fit compared
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Which one fits you
Both need much the same wrist — roughly 50–69mm across the flat of the wrist. Neither will fit where the other won't, so decide on thickness, weight and features instead.
The Huawei Watch Ultimate 2 wears larger than the Samsung Galaxy Watch Ultra (48.5mm vs 47.4mm case), giving it more wrist presence — and needing a wider wrist to sit cleanly.
The Samsung Galaxy Watch Ultra is the slimmer of the two (12.1mm vs 12.9mm), so it slides under a cuff more easily.
On the wrist the Samsung Galaxy Watch Ultra feels lighter (60.5g vs 80.5g, case only).
The Huawei Watch Ultimate 2 is thinner than 75% of the 49mm watches we track and the Samsung Galaxy Watch Ultra than 87% of the 47mm ones — so both wear flatter than their widths suggest.
The Huawei Watch Ultimate 2 is 1.1mm wider, 1.1mm longer, 0.8mm thicker and 20g heavier than the Samsung Galaxy Watch Ultra. Both are circular.
Huawei
Watch Ultimate 2
Samsung
Galaxy Watch Ultra
Switch or add watches
Huawei
Watch Ultimate 2
Samsung
Galaxy Watch Ultra
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.
Huawei Watch Ultimate 2
Case 48.5mm · Lug-to-lug 48.5mm · Thickness 12.9mm · 81g
Sweet Spot
48.5mm on a 55mm wrist
Across the wrist it works — 3.3mm 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 48.5mm.
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 wrist3.3mm 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~7.0mm under the rim
Wide enough that the edge of the case back lifts clear of the skin.
- Weight on the wrist81g
Substantial without being a burden — the usual weight of a steel watch on a wrist this size. (1.5g per mm of wrist)
Samsung Galaxy Watch Ultra
Case 47.4mm · Lug-to-lug 47.4mm · Thickness 12.1mm · 61g
Sweet Spot
47.4mm on a 55mm wrist
Across the wrist it works — 3.8mm 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 47.4mm.
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 wrist3.8mm 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~6.3mm under the rim
Wide enough that the edge of the case back lifts clear of the skin.
- Weight on the wrist61g
Substantial without being a burden — the usual weight of a steel watch on a wrist this size. (1.1g per mm of wrist)
2D Dimension Schematics
Every case drawn to scale on a shared centre — from above, and in profile against the wrist.
- Huawei Watch Ultimate 248.5mm · 12.9mm thick
- Samsung Galaxy Watch Ultra47.4mm · 12.1mm thick
3D preview
Huawei Watch Ultimate 2 vs Samsung Galaxy Watch Ultra 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 Training mode, where the Huawei Watch Ultimate 2 lasts 4.0× as long as the Samsung Galaxy Watch Ultra (8 days against 2 days).
Huawei Watch Ultimate 2Samsung Galaxy Watch Ultra
Training
192 hours48 hoursGPS
192 hours—Smartwatch
4.5 days4 daysBattery Saver
—100 hours
Specifications
The short version
10 key specs| Spec | HuaweiWatch Ultimate 2 | SamsungGalaxy Watch Ultra |
|---|---|---|
| Case Width | 48.5mm | 47.4mm |
| Thickness | 12.9mm | 12.1mm |
| Weight | 80.5g | 60.5g |
| Shape | Circular | Circular |
| Water Resistance | 10 ATM | 10 ATM |
| GPS | Yes | Yes |
| Display type | OLED/AMOLED | OLED/AMOLED |
| Screen size | 1.5 inches | 1.5 inches |
| Battery life | 4.5 days | 4 days |
| Released | 2025 | 2024 |
Every specification
125 specs| Spec | Huawei Watch Ultimate 2 | Samsung Galaxy Watch Ultra |
|---|---|---|
| Design | ||
| width | 48.5 | 47.4 |
| height | 48.5 | 47.4 |
| volume | 30.34 cm³ | 27.19 cm³ |
| weight | 80.5 g | 60.5 g |
| thickness | 12.9 | 12.1 |
| ATM rating | 10 ATM | 10 ATM |
| resolution | 466 x 466 px | 480 x 480 px |
| screen size | 1.5 inches | 1.5 inches |
| Display type | OLED/AMOLED | OLED/AMOLED |
| Has a display | Yes | Yes |
| pixel density | 311 ppi | 327 ppi |
| width of band | 22 mm | — |
| water resistance | Waterproof | Waterproof |
| Always-On Display | Yes | Yes |
| has a touch screen | Yes | Yes |
| is designed for kids | No | No |
| waterproof depth rating | 150 m | 100 m |
| Watch band is replaceable | Yes | Yes |
| Has sapphire glass display | Yes | Yes |
| maximum operating temperature | 45 °C | 55 °C |
| Ingress Protection (IP) rating | IP68 | IP68 |
| has branded damage-resistant glass | No | No |
| lowest potential operating temperature | -20 °C | -20 °C |
| maximum altitude | — | 29527 feet |
| Battery | ||
| charge time | 1 hours | — |
| battery life | 4.5 days | 4 days |
| battery power | 867 mAh | 590 mAh |
| has wireless charging | Yes | Yes |
| has a removable battery | No | No |
| battery life with GPS on | 192 hours | — |
| Has a solar power battery | No | No |
| has a rechargeable battery | Yes | Yes |
| battery life in training mode | 192 hours | 48 hours |
| battery life in power save mode | — | 100 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 | Yes | No |
| has an accelerometer | Yes | Yes |
| Has a heart rate monitor | Yes | Yes |
| Has a temperature sensor | Yes | Yes |
| Monitors blood oxygenation levels | Yes | Yes |
| Monitors perspiration | — | No |
| Features | ||
| RAM | 2GB | 2GB |
| release date | 2025-09-20 | 2024-07-10 |
| Has a stopwatch | Yes | Yes |
| warranty period | 1 years | — |
| Has call control | Yes | Yes |
| Has silent alarm | Yes | Yes |
| has HRV tracking | Yes | Yes |
| internal storage | 32GB | 32GB |
| measures VO2 max | Yes | Yes |
| Has notifications | Yes | Yes |
| Has ECG technology | Yes | Yes |
| Locates your phone | Yes | Yes |
| has voice commands | Yes | Yes |
| Acquires GPS faster | Yes | Yes |
| Has vibrating alerts | Yes | Yes |
| shows readiness level | Yes | Yes |
| Can be used to answer calls | Yes | Yes |
| measures resting heart rate | Yes | Yes |
| has irregular heart rate warnings | Yes | Yes |
| has fast/slow heart rate notifications | Yes | Yes |
| Has a built-in camera remote control function | Yes | Yes |
| Has smart alarm | — | No |
| has a front camera | — | No |
| has fall detection | — | Yes |
| Connectivity | ||
| has NFC | Yes | Yes |
| Wi-Fi version | Wi-Fi 6 (802.11ax), Wi-Fi 5 (802.11ac), Wi-Fi 4 (802.11n) | Wi-Fi 4 (802.11n), Wi-Fi 5 (802.11ac) |
| supports ANT+ | No | No |
| supports Wi-Fi | Yes | Yes |
| supports Galileo | Yes | Yes |
| Bluetooth version | 5.2 | 5.4 |
| has a cellular module | No | Yes |
| Is compatible with iOS | Yes | No |
| Is compatible with Android | Yes | Yes |
| SIM cards | — | 1 eSIM |
| Miscellaneous | ||
| Has passcode | Yes | Yes |
| Has auto pause | Yes | Yes |
| Has trackback mode | Yes | — |
| Is compatible with Windows | No | No |
| Is compatible with Mac OS X | No | No |
| has an external memory slot | No | No |
| Compatible with smart scales | Yes | Yes |
| has a battery level indicator | Yes | Yes |
| Provides the sunrise/sunset time | Yes | — |
| has a socket for a 3.5 mm audio jack | No | No |
| Compatible with external heart rate monitors | Yes | Yes |
| App & Software | ||
| Ad-free | Yes | Yes |
| Free app | Yes | Yes |
| Tracks BMI | Yes | Yes |
| Has coaching | Yes | Yes |
| Includes maps | Yes | Yes |
| Supports routes | Yes | Yes |
| Has achievements | Yes | Yes |
| Has goal setting | Yes | Yes |
| Has live tracking | Yes | — |
| Has exercise diary | Yes | Yes |
| Predicts ovulation | Yes | Yes |
| Can be personalised | Yes | Yes |
| Has weight tracking | Yes | Yes |
| Predicts start date | Yes | Yes |
| Tracks water intake | Yes | Yes |
| number of exercises | 144 | — |
| Has inactivity alerts | Yes | Yes |
| Has period notifications | Yes | Yes |
| Has temperature tracking | Yes | Yes |
| Provides activity reports | Yes | Yes |
| Displays fertile window notifications | 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 | Yes | — |
| Tracks your sleep | Yes | Yes |
| Tracks steps taken | Yes | Yes |
| Designed for diving | Yes | No |
| Has a route tracker | Yes | Yes |
| Has exercise tagging | Yes | Yes |
| Has multi-sport mode | Yes | Yes |
| Tracks calorie intake | Yes | Yes |
| Provides sleep reports | Yes | Yes |
| Detects activities automatically | Yes | Yes |
| Has a stroke counter for swimming | Yes | Yes |
Wrist Fit
Huawei Watch Ultimate 2
Sits best on wrists ~51–69mm wide (≈ 13.6–18.4cm circumference).
Samsung Galaxy Watch Ultra
Sits best on wrists ~50–68mm wide (≈ 13.4–18.2cm circumference).
Frequently Asked Questions
Is the Huawei Watch Ultimate 2 bigger than the Samsung Galaxy Watch Ultra?
The Huawei Watch Ultimate 2 is bigger — 48.5mm vs 47.4mm case width.
Which fits a smaller wrist better, the Huawei Watch Ultimate 2 or the Samsung Galaxy Watch Ultra?
The Huawei Watch Ultimate 2 suits wrists around 51–69mm wide, and the Samsung Galaxy Watch Ultra around 50–68mm. The one with the smaller lower bound is the safer pick for a small wrist.
Can I see the Huawei Watch Ultimate 2 and Samsung Galaxy Watch Ultra 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.