Apple
Watch Series 11 - GPS + Cellular · Titanium · 46mm vs Watch Ultra 3
Size, specs & wrist fit compared
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Which one fits you
On wrists narrower than about 52mm, the Watch Series 11 - GPS + Cellular · Titanium · 46mm is the safer pick — it stays proportionate down to roughly 48mm, where the Watch Ultra 3 starts to hang over the edge. Above 52mm both sit cleanly, and the Watch Ultra 3 gives you more presence.
The Watch Ultra 3 wears larger than the Watch Series 11 - GPS + Cellular · Titanium · 46mm (44mm vs 39mm case), giving it more wrist presence — and needing a wider wrist to sit cleanly.
The Watch Series 11 - GPS + Cellular · Titanium · 46mm is the slimmer of the two (9.7mm vs 12mm), so it slides under a cuff more easily.
On the wrist the Watch Series 11 - GPS + Cellular · Titanium · 46mm feels lighter (43.1g vs 61.8g, case only).
The Watch Series 11 - GPS + Cellular · Titanium · 46mm is thinner than 83% of the 39mm watches we track and the Watch Ultra 3 than 89% of the 44mm ones — so both wear flatter than their widths suggest.
The Watch Ultra 3 is 5mm wider, 3mm longer, 2.3mm thicker and 18.7g heavier than the Watch Series 11 - GPS + Cellular · Titanium · 46mm. Both are rectangle.
Watch Series 11 - GPS + Cellular · Titanium · 46mm
Watch Ultra 3
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Watch Series 11 - GPS + Cellular · Titanium · 46mm
Apple
Watch Ultra 3
2D Dimension Schematics
Every case drawn to scale on a shared centre — from above, and in profile against the wrist.
- Apple Watch Series 11 - GPS + Cellular · Titanium · 46mm39mm × 46mm · 9.7mm thick
- Apple Watch Ultra 344mm × 49mm · 12mm thick
3D preview
Watch Series 11 - GPS + Cellular · Titanium · 46mm vs Watch Ultra 3 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 Battery Saver mode, where the Ultra 3 lasts 1.9× as long as the Series 11 - GPS + Cellular · Titanium · 46mm (3 days against 38 hours).
Series 11 - GPS + Cellular · Titanium · 46mmUltra 3
Battery Saver
38 hours72 hoursSmartwatch
1 day1.75 days
Specifications
The short version
11 key specs| Spec | AppleWatch Series 11 - GPS + Cellular · Titanium · 46mm | AppleWatch Ultra 3 |
|---|---|---|
| Case Width | 39mm | 44mm |
| Lug-to-Lug | 46mm | 49mm |
| Thickness | 9.7mm | 12mm |
| Weight | 43.1g | 61.8g |
| Shape | Rectangle | Rectangle |
| Water Resistance | Water resistant | 10 ATM |
| GPS | Yes | Yes |
| Display type | OLED/AMOLED | OLED/AMOLED |
| Screen size | 1.96 inches | 1.98 inches |
| Battery life | 1 day | 1.75 days |
| Released | 2025 | 2025 |
Every specification
120 specs| Spec | Apple Watch Series 11 - GPS + Cellular · Titanium · 46mm | Apple Watch Ultra 3 |
|---|---|---|
| Design | ||
| width | 39 | 44 |
| height | 46 | 49 |
| volume | 17.4 cm³ | 25.87 cm³ |
| weight | 43.1 g | 61.8 g |
| thickness | 9.7 | 12 |
| resolution | 416 x 496 px | 422 x 514 px |
| screen size | 1.96 inches | 1.98 inches |
| Display type | OLED/AMOLED | OLED/AMOLED |
| Has a display | Yes | Yes |
| pixel density | 330 ppi | 326 ppi |
| maximum altitude | 3000 feet | — |
| water resistance | Water resistant | Waterproof |
| Always-On Display | Yes | Yes |
| has a touch screen | Yes | Yes |
| is designed for kids | No | No |
| waterproof depth rating | 50 m | 100 m |
| Watch band is replaceable | Yes | Yes |
| Has sapphire glass display | Yes | Yes |
| maximum operating temperature | 35 °C | 55 °C |
| Ingress Protection (IP) rating | IP68 | IPX6 |
| has branded damage-resistant glass | No | No |
| lowest potential operating temperature | 0 °C | -20 °C |
| ATM rating | — | 10 ATM |
| Battery | ||
| charge time | 1.2 hours | 1.5 hours |
| battery life | 1 days | 1.75 days |
| battery power | 327 mAh | — |
| has wireless charging | Yes | Yes |
| has a removable battery | No | No |
| Has a solar power battery | No | No |
| has a rechargeable battery | Yes | Yes |
| battery life in power save mode | 38 hours | 72 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 | Yes |
| Monitors blood oxygenation levels | Yes | Yes |
| Features | ||
| release date | 2025-09-09 | 2025-09-09 |
| 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 | Yes |
| internal storage | 64GB | 64GB |
| measures VO2 max | Yes | Yes |
| Has notifications | Yes | Yes |
| Has ECG technology | Yes | Yes |
| Locates your phone | Yes | Yes |
| has a front camera | No | No |
| has fall detection | Yes | Yes |
| has voice commands | Yes | Yes |
| Acquires GPS faster | No | Yes |
| Has vibrating alerts | Yes | Yes |
| number of microphones | 1 | 1 |
| shows readiness level | No | — |
| 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 |
| RAM | — | 2GB |
| Connectivity | ||
| has NFC | Yes | Yes |
| SIM cards | 1 eSIM | 1 eSIM |
| Wi-Fi version | Wi-Fi 4 (802.11n) | Wi-Fi 4 (802.11n) |
| supports ANT+ | No | No |
| supports Wi-Fi | Yes | Yes |
| supports Galileo | Yes | Yes |
| Bluetooth version | 5.3 | 5.3 |
| has a cellular module | Yes | Yes |
| Is compatible with iOS | Yes | Yes |
| Is compatible with Android | No | No |
| Miscellaneous | ||
| has aptX | No | No |
| Has passcode | Yes | Yes |
| Has auto pause | Yes | Yes |
| has crash detection | Yes | Yes |
| Is compatible with Windows | No | No |
| Is compatible with Mac OS X | Yes | No |
| has an external memory slot | No | No |
| Compatible with smart scales | Yes | Yes |
| has a battery level indicator | Yes | 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 |
| Has coaching | No | No |
| Has achievements | Yes | Yes |
| Has goal setting | Yes | 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 |
| Has inactivity alerts | Yes | Yes |
| Has period notifications | Yes | Yes |
| Has temperature tracking | Yes | Yes |
| Provides activity reports | Yes | Yes |
| Counts how many calories you've burned | Yes | Yes |
| Includes maps | — | Yes |
| Supports routes | — | Yes |
| Displays fertile window notifications | — | 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 | Yes |
| Has a route tracker | Yes | Yes |
| Has exercise tagging | Yes | Yes |
| Has multi-sport mode | Yes | Yes |
| Tracks calorie intake | Yes | No |
| Provides sleep reports | Yes | Yes |
| Detects activities automatically | Yes | Yes |
| Has a stroke counter for swimming | Yes | Yes |
Wrist Fit
Apple Watch Series 11 - GPS + Cellular · Titanium · 46mm
Sits best on wrists ~48–66mm wide (≈ 12.8–17.6cm circumference).
Apple Watch Ultra 3
Sits best on wrists ~52–70mm wide (≈ 13.9–18.7cm circumference).
Frequently Asked Questions
Is the Apple Watch Series 11 - GPS + Cellular · Titanium · 46mm bigger than the Apple Watch Ultra 3?
The Apple Watch Ultra 3 is bigger — 44mm vs 39mm case width.
Which fits a smaller wrist better, the Apple Watch Series 11 - GPS + Cellular · Titanium · 46mm or the Apple Watch Ultra 3?
The Apple Watch Series 11 - GPS + Cellular · Titanium · 46mm suits wrists around 48–66mm wide, and the Apple Watch Ultra 3 around 52–70mm. The one with the smaller lower bound is the safer pick for a small wrist.
Can I see the Apple Watch Series 11 - GPS + Cellular · Titanium · 46mm and Apple Watch Ultra 3 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.