Apple Watch Series 11 vs Xiaomi Watch S4 41mm
Apple Watch Series 11 and Xiaomi Watch S4 41mm are watches both released in 2025 by different brands, with overlapping phone compatibility. This comparison separates the catalog's listed specifications from missing information and approximate values. It covers 18 fields, including 11 exact differences; it does not choose a winner.
Specifications side by side
| Field | Apple Watch Series 11 | Xiaomi Watch S4 41mm |
|---|---|---|
| Release year | 2025 | 2025 |
| Case sizes | 42 / 46 mm | 41 mm |
| Display | LTPO OLED, Always-On | AMOLED 1.32" |
| Brightness | 2000 nits | 1500 nits |
| Battery, as listed | Up to 24 hours | Not listed |
| Operating system | watchOS 26+ | Xiaomi HyperOS 3 |
| Phone compatibility | iPhone | Android, iPhone |
| Cellular connection | eSIM · 5G | None |
| Water rating | 5ATM | 5ATM |
| Glass | Ion-X / sapphire (titanium) | Not listed |
| Case material | Aluminum / titanium | Stainless steel |
| GPS | Multi-system GNSS | Dual-frequency GNSS |
| Maps | No | No |
| Payment system | Apple Pay | None listed |
| Plan requirement | Not required | Not required |
| Listed sensors and features | Sleep apnea, Blood pressure trend, ECG, HRV, SpO2, Skin temperature | HRV, SpO2, Skin temperature |
| Safety features | Crash detection, Fall detection, SOS calling | Fall detection, SOS calling |
| Hardware flashlight | No | No |
"Not listed" means the catalog has no usable value for that field. It does not mean the watch lacks the feature. Approximate values stay visible but do not support the difference count or numeric deltas.
Where they differ
- Case sizes: Apple Watch Series 11 lists 42 / 46 mm; Xiaomi Watch S4 41mm lists 41 mm. Keep the variant qualifications when comparing an individual model; this row describes the catalog entry rather than every configuration.
- Display: Apple Watch Series 11 lists LTPO OLED, Always-On; Xiaomi Watch S4 41mm lists AMOLED 1.32".
- Brightness: Apple Watch Series 11 lists 2000 nits; Xiaomi Watch S4 41mm lists 1500 nits. The listed values are 500 nits apart.
- Operating system: Apple Watch Series 11 lists watchOS 26+; Xiaomi Watch S4 41mm lists Xiaomi HyperOS 3. The listed software descriptions are not a guarantee of the software version currently installed on an individual watch.
- Phone compatibility: Apple Watch Series 11 lists iPhone; Xiaomi Watch S4 41mm lists Android, iPhone.
- Cellular connection: Apple Watch Series 11 lists eSIM · 5G; Xiaomi Watch S4 41mm lists None. Variant wording is retained. A cellular specification alone does not confirm activation with your mobile carrier.
- Case material: Apple Watch Series 11 lists Aluminum / titanium; Xiaomi Watch S4 41mm lists Stainless steel. Keep the variant qualifications when comparing an individual model; this row describes the catalog entry rather than every configuration.
- GPS: Apple Watch Series 11 lists Multi-system GNSS; Xiaomi Watch S4 41mm lists Dual-frequency GNSS.
- Payment system: Apple Watch Series 11 lists Apple Pay; Xiaomi Watch S4 41mm lists None listed.
- Listed sensors and features: Apple Watch Series 11 lists Sleep apnea, Blood pressure trend, ECG, HRV, SpO2, Skin temperature; Xiaomi Watch S4 41mm lists HRV, SpO2, Skin temperature. This compares the listed feature names, not measurement accuracy, clinical usefulness or availability in a particular country.
- Safety features: Apple Watch Series 11 lists Crash detection, Fall detection, SOS calling; Xiaomi Watch S4 41mm lists Fall detection, SOS calling.
Where they are the same
- Both list release year: 2025.
- Both list water rating: 5ATM.
- Both list maps: No.
- Both list plan requirement: Not required.
- Both list hardware flashlight: No.
Which one fits you
Apple Watch Series 11 is listed as a watch compatible with iPhone. Start with that phone requirement before comparing the other rows. The exact differences above are a way to identify which listed specifications matter to your use, not evidence that one model is better in every respect.
Xiaomi Watch S4 41mm is listed as a watch compatible with Android, iPhone. Start with that phone requirement before comparing the other rows. The exact differences above are a way to identify which listed specifications matter to your use, not evidence that one model is better in every respect.
Information is missing on at least one side for: Battery, as listed, Glass. Those rows are excluded from the exact difference count.
Related pages
- Apple Watch Series 11 specifications
- Apple watches
- Xiaomi Watch S4 41mm specifications
- Xiaomi watches
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