In depth comparison and review of Amazfit Stratos 2S and Fitbit Versa 4. Compare sizes, functions, displays, batteries and other important specifications and features to easily choose the right smartwatch for you. Our goal is to help you uncover differences between the products and find the watch that will best fit your needs.
| GENERAL | Amazfit Stratos 2S | Fitbit Versa 4 |
|---|
| Product Type | Smart watch | Smart watch |
|---|---|---|
| Supported Host Device OS | Android 4.4 (KitKat) or later, iOS 9 or later | Android 10 or later, iOS 13.4 or later |
| Wearing Style | Watch style | Watch style |
| Audio Input | - | Microphone |
| Audio Output | - | Speaker |
| Width | - | 40.5 mm |
| Height | - | 40.5 mm |
| Depth | - | 11.2 mm |
| Protection | Dustproof, waterproof | Water-resistant |
| Clock Display | Yes | Yes |
| FEATURES | Amazfit Stratos 2S | Fitbit Versa 4 |
|---|
| Sensors | Ambient light sensor, gyro sensor, heart rate, geomagnetic sensor, 3-axis accelerometer | Ambient light sensor, altimeter, SpO2 sensor, 3-axis accelerometer, optical heart sensor, vibration motor |
|---|---|---|
| Tracking Data | Distance, time, speed, calories burned, sleep activity, heart rate, pace, cadence, oxygen level | Distance, calories burned, activity, sleep activity, heart rate, steps taken, pace, stress level, menstrual cycle, Resting Heart Rate (RHR), breathing rate, sleep quality score |
| Modes | - | 40+ sports modes |
| Goal Setting | - | Yes |
| Features | Listening to music, idle alert | Find phone function, VO2 max, Heart Rate Variability (HRV) monitoring, HR zones, automatic exercise recognition, smart Wake-Up, Active Zone Minutes, guided breathing session, Always-on display, Sleep Score, Sleep Profile, Stress Management Score, Daily Readiness Score |
| Notifications | Missed calls, SMS, Email, social apps, incoming calls | SMS, incoming calls, applications, high and low heart rate |
| Vibrating Alert | Yes | Yes |
| Feedback Type | - | Audio alert, vibration alert, visual interface |
| Navigation (GPS) | - | GPS/GLONASS receiver |
| Payment Technology | - | FitBit Pay |
| Internet of Things (IoT) Compatible | - | Yes |
| IoT Intelligent Assistant | - | Alexa built-in |
| CONNECTIVITY | Amazfit Stratos 2S | Fitbit Versa 4 |
|---|
| Wireless Interface | IEEE 802.11b/g/n, Bluetooth 4.0 | NFC, Bluetooth 5.0 |
|---|
| DISPLAY | Amazfit Stratos 2S | Fitbit Versa 4 |
|---|
| Type | LCD - colour - transflective | Colour |
|---|---|---|
| Resolution | 320 x 300 pixels | - |
| Screen Size | 1.34" | - |
| Screen Protection | Dinorex Glass (scratch resistant glass) | - |
| Always On Display (AOD) | - | Yes |
| INPUT DEVICE | Amazfit Stratos 2S | Fitbit Versa 4 |
|---|
| Type | Touch sensitive screen | Touch sensitive screen |
|---|
| CASE | Amazfit Stratos 2S | Fitbit Versa 4 |
|---|
| Case Size | - | 40 mm |
|---|---|---|
| Case Shape | Round | Square |
| Bezel | Ceramic black | - |
| Case Details | Carbon fibre | Copper rose | Graphite | Platinum |
| BAND | Amazfit Stratos 2S | Fitbit Versa 4 |
|---|
| Band Type | Band | Band |
|---|---|---|
| Band Size | - | S/L |
| Band Width | 22 mm | - |
| Fits Wrist with Circumference | - | Up to 209 mm |
| Changeable | Yes | Yes |
| Clasp Type | Buckle | Pin-and-tuck |
| Band Material | Leather | - |
| Band Colour | Black | Pink sand | Black | Waterfall blue |
| STORAGE | Amazfit Stratos 2S | Fitbit Versa 4 |
|---|
| Storage Capacity | 4 GB | - |
|---|---|---|
| User Memory | 2 GB | - |
| RAM | Amazfit Stratos 2S | Fitbit Versa 4 |
|---|
| RAM Size | 512 MB | - |
|---|
| CPU | Amazfit Stratos 2S | Fitbit Versa 4 |
|---|
| Clock Speed | 1.2 GHz | - |
|---|
| BATTERY | Amazfit Stratos 2S | Fitbit Versa 4 |
|---|
| Technology | - | Lithium polymer |
|---|---|---|
| Capacity | 290 mAh | - |
| Battery Life | - | 6 day(s) |
| Battery Life Details | - | Typical usage - up to 6 days GPS mode - up to 12 hour(s) |
| Standby Time | 5 days | - |
| Rechargeable Battery | - | Yes |
| Recharge Time | - | 2 hour(s) |
| MISCELLANEOUS | Amazfit Stratos 2S | Fitbit Versa 4 |
|---|
| Included Accessories | - | Charging cable, 6-month Fitbit Premium membership, wristband (129 - 175 mm), wristband (158 - 209 mm) |
|---|---|---|
| Preloaded Software | - | Google Maps, FitBit Pay, Google Wallet |
| Max Depth of Water Resistance | 50 m | 50 m |
| Max Operating Temperature | - | 45 °C |
| Min Operating Temperature | - | -10 °C |
| Warranty | - | 2-year warranty |
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