Amazfit Active 2 (round) vs Xiaomi Watch S4 41mm

Amazfit Active 2 (round) 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

"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: Amazfit Active 2 (round) lists 44 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: Amazfit Active 2 (round) lists 1.32 in AMOLED 466x466; Xiaomi Watch S4 41mm lists AMOLED 1.32".
• Brightness: Amazfit Active 2 (round) lists 2000 nits; Xiaomi Watch S4 41mm lists 1500 nits. The listed values are 500 nits apart.
• Battery, as listed: Amazfit Active 2 (round) lists Up to 10 days; Xiaomi Watch S4 41mm lists Up to 8 days with light use · 4 days normal. These are the full listed battery descriptions. Different modes or case variants prevent a single numeric battery-life delta.
• Operating system: Amazfit Active 2 (round) lists Zepp OS; 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.
• Glass: Amazfit Active 2 (round) lists Sapphire (Premium version); Xiaomi Watch S4 41mm lists Tempered glass. Keep the variant qualifications when comparing an individual model; this row describes the catalog entry rather than every configuration.
• GPS: Amazfit Active 2 (round) lists Standard GPS; Xiaomi Watch S4 41mm lists Dual-frequency GNSS.
• Maps: Amazfit Active 2 (round) lists Yes; Xiaomi Watch S4 41mm lists No.
• Plan requirement: Amazfit Active 2 (round) lists Optional; Xiaomi Watch S4 41mm lists Not required.
• Listed sensors and features: Amazfit Active 2 (round) lists Heart rate, 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: Amazfit Active 2 (round) lists None listed; Xiaomi Watch S4 41mm lists Fall detection, SOS calling.

Where they are the same

• Both list release year: 2025.
• Both list phone compatibility: Android, iPhone.
• Both list cellular connection: None.
• Both list water rating: 5ATM.
• Both list case material: Stainless steel.
• Both list payment system: None listed.
• Both list hardware flashlight: No.

Which one fits you

Amazfit Active 2 (round) 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.

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.

Related pages

• Amazfit Active 2 (round) specifications
• Amazfit watches
• Xiaomi Watch S4 41mm specifications
• Xiaomi watches
• Amazfit Balance vs Amazfit Balance 2
• Amazfit Balance 2 vs Amazfit Balance 3
• Amazfit Bip 5 vs Amazfit Bip 6
• Amazfit Active vs Amazfit Active 2 (round)
• Amazfit Active 2 (round) vs Amazfit Active 3 Premium
• Amazfit GTS (1st gen) vs Amazfit GTS 2
• All pair comparisons