With the Amazfit Stratos 3 added to the Amazfit Stratos series, you have three members which consist of the Amazfit Stratos and Stratos 2. All three watches are solidly built and equipped to track your daily activities comprehensively. Although, the Stratos 3 features the Firstbeat algorithm, has more preloaded sports modes and a slightly longer battery life. In this post, we’re comparing the differences between the Amazfit Stratos vs Stratos 2 vs Stratos 3 to determine what’s new.
Amazfit Stratos vs Stratos 2 vs Stratos 3 Specifications Compared
| Product Info |
 Amazfit Stratos Specifications, Features and Price |
Amazfit Stratos 2 Specifications, Features and Price |
 Amazfit Stratos 3 Specifications, Features and Price |
|---|---|---|---|
| Price | - | $160.00 | $239.99 |
| ABOUT DEVICE | ABOUT DEVICE | ABOUT DEVICE | ABOUT DEVICE |
| Device name | Amazfit Stratos | Amazfit Stratos 2 | Amazfit Stratos 3 |
| Device type | Fitness/Classic smartwatch | Fitness/Classic smartwatch | Fitness/Classic smartwatch |
| Gender | Men | Men | Men |
| Release date | December, 2017 | April, 2018 | September, 2019 |
| Predecessor | — | Amazfit Stratos | Amazfit Stratos 2 |
| Successor | Amazfit Pace 2 (Stratos) | Amazfit Stratos 3 | — |
| Versions | Amazfit Stratos 2S | — | Amazfit Stratos 3 Elite Version |
| BODY | BODY | BODY | BODY |
| Dimension | 45.72 x 45.72 x 12.7 mm | 45.72 x 45.72 x 12.7 mm | 45.72 x 45.72 x 12.7 mm |
| Weight | 60 grams | 70g | 60 grams |
| Shape | Circular | Circular | Circular |
| Case material | Stainless steel 316L, Thermoplastic | Stainless steel 316L, Thermoplastic | Stainless steel 316L |
| Strap material | Silicone | Silicone | Silicone |
| Bezel material | Ceramics | Ceramics | Ceramics |
| Strap size | 22 mm | 22 mm | 22 mm |
| Interchangeable strap | 22 mm, Yes | 22 mm, Yes | 22 mm, Yes |
| Screen protection | Corning Gorilla Glass | Corning Gorilla Glass | Corning Gorilla Glass |
| Water resistance | Yes, 5ATM | Yes, 5ATM | Yes, 5ATM |
| Durability test | — | — | — |
| Swim-proof | Yes, recommended | Yes, recommended | Yes, recommended |
| Color | Black | Black | Black |
| DISPLAY | DISPLAY | DISPLAY | DISPLAY |
| Display size | 1.34 inch | 1.34 inch | 1.34 inch |
| Display type | Memory-in-pixel (MIP), transflective | Memory-in-pixel (MIP), transflective | Memory-in-pixel (MIP), transflective |
| Display resolution | 320 x 300 px | 320 x 300 px | 320 x 320 px |
| Pixel density | — | — | — |
| Always on | Yes | Yes | Yes |
| Custom watch face | Yes | Yes | Yes |
| Input type | 3 Physical buttons, Touchscreen | 3 Physical buttons, Touchscreen | 4 Physical buttons, Touchscreen |
| CONNECTIVITY | CONNECTIVITY | CONNECTIVITY | CONNECTIVITY |
| Bluetooth | Yes, Bluetooth v4.2 LE | Yes, Bluetooth v4.2 LE | Bluetooth v5.0 |
| Bluetooth calling | No | No | No |
| GPS | GLONASS, GPS | GLONASS, GPS | BEIDOU, Galileo, GLONASS, GPS |
| NFC | No | No | (China only), Yes |
| Wi-Fi | Yes, WLAN 2.4GHz | Yes, WLAN 2.4GHz | Yes, WLAN 2.4GHz |
| MEMORY | MEMORY | MEMORY | MEMORY |
| RAM | 512MB | 512MB | 512MB |
| ROM | 4GB | 4GB | 4GB |
| Memory card slot | No | No | No |
| CELLULAR CONNECTIVITY | CELLULAR CONNECTIVITY | CELLULAR CONNECTIVITY | CELLULAR CONNECTIVITY |
| Technology | None | None | None |
| SIM type | None | None | None |
| Band | — | — | — |
| NOTIFICATIONS | NOTIFICATIONS | NOTIFICATIONS | NOTIFICATIONS |
| SMS alert | Yes | Yes | Yes |
| Calls alert | Yes | Yes | Yes |
| Email alert | Yes | Yes | Yes |
| Event reminder | Yes | Yes | Yes |
| Third-party apps alert | Yes | Yes | Yes |
| Reply to Notifications | - | - | - |
| MEDIA | MEDIA | MEDIA | MEDIA |
| Audio | mp3/mp4 | mp3/mp4 | mp3/mp4 |
| Bluetooth music | Yes | Yes | Yes |
| Loudspeaker | No | No | No |
| Microphone | No | No | No |
| Camera | No | No | No |
| Radio | No | No | No |
| SENSORS | SENSORS | SENSORS | SENSORS |
| Accelerometer | Yes | Yes | Yes |
| Altimeter | No | — | — |
| Ambient light | Yes | Yes | Yes |
| Barometer | Yes | Yes | Yes |
| Compass | Yes | Yes | Yes |
| ECG | No | No | No |
| Gyroscope | Yes | Yes | Yes |
| HRM | Yes | Yes | Yes |
| Pulse oximeter (SpO2) | — | No | — |
| Temperature | No | No | No |
| Other sensors | — | — | — |
| ACTIVITY TRACKING | ACTIVITY TRACKING | ACTIVITY TRACKING | ACTIVITY TRACKING |
| Blood oxygen | Yes | Yes | No |
| Blood Pressure | No | No | No |
| Calories | Yes | Yes | Yes |
| Distance | Yes | Yes | Yes |
| ECG tracking | No | No | No |
| Heart rate monitoring | Yes | Yes | Yes |
| Sleep tracking | Yes | Yes | Yes |
| Steps | Yes | Yes | Yes |
| Floors climbed | Yes | Yes | Yes |
| Stress | — | — | — |
| Fall detection | No | No | No |
| Menstrual cycle | No | No | No |
| VO2 Max | Yes | Yes | Yes |
| Swim-tracking | Yes | Yes | Yes |
| Underwater heart rate tracking | No | No | No |
| On-screen workout | No | No | No |
| Sport modes | 16, Yes | 16, Yes | 80, Yes |
| BATTERY | BATTERY | BATTERY | BATTERY |
| Battery type | non-removable Lithium-polymer | non-removable Lithium-polymer | non-removable Lithium-polymer |
| Battery capacity | 290mAh | 290mAh | 300mAh |
| Battery life | Regular: 5 days+ | Regular: 5 days+ | Regular: 7 days+, Ultramode: 14 days |
| Charging type | Charging dock | Charging dock | Charging dock |
| Charging time | 1-2 hours | 1-2 hours | 1-2 hours |
| Solar charging | No | No | No |
| PLATFORM | PLATFORM | PLATFORM | PLATFORM |
| Chipset | — | — | — |
| CPU | 1.2GHz dual-core | 1.2GHz dual-core | 1.2GHz dual-core |
| GPU | — | — | — |
| Operating system | Amazfit OS | Amazfit OS | Amazfit OS |
| MISC | MISC | MISC | MISC |
| Companion app | Amazfit Watch App | Amazfit Watch App | Amazfit Watch App |
| Compatibility | Android 4.4+, iOS 9.0+ | Android 4.4+, iOS 9.0+ | Android 5.0+, iOS 10.0+ |
| Payment system | None | None | Alipay |
| Voice command | No | No | No |
| Find my phone | Yes | Yes | Yes |
| Box content | Amazfit Stratos, Charger, Manual, Straps | Amazfit Stratos 2, Charger, Manual, Straps | Amazfit Stratos 3, Charger, Manual, Straps |
What’s the Difference?
There are very few differences between the different generations of Amazfit Stratos. Each has a 316 stainless steel build with a plastic back. Meanwhile, Corning Gorilla Glass is used for the screen while the 1.34 inches display is powered by transflective memory-in-pixel (MIP).
All three watches have a touch-sensitive screen with two physical buttons for effortless navigation. So, you get almost similar build quality across all three.
In the fitness section, each of these three comes equipped with a heart rate sensor, accelerometer, inbuilt GPS, and geomagnetic sensors. This enables steps and calorie counting, 24/7 heart rate measurement, sleep tracking as well as the ability to map your routes and locations when you engage in an outdoor activity.
All three watches also come with a 4GB storage capacity that allows for onboard music storage. You can add your personal tracks to any of these three which you can listen to by connecting a Bluetooth headphone.
All three Stratos will also alert you when you receive a notification on your phone. You will need to enable notifications for your preferred apps in the companion app to be able to receive message alerts on the watch (the phone must be nearby).
So far, you can see that all three Amazfit Stratos have very similar features. Each of these three has got an outstanding design, while also being a comprehensive activity tracker with a decent long battery life.
However, the Amazfit Stratos 3 features more preloaded sports modes. It features 80 preloaded sports modes compared to 16 on the other two. It also has more Firstbeat algorithms under the hood that enable advanced tracking and analysis during workouts. Moreover, the Stratos 3 has a slightly longer battery life than the other two. It has up to 7 days battery life compared to up to 5 days with Stratos 2 and 3. It’s clearly the best choice.
VERDICT: The Amazfit Stratos 3 being more equipped to track your active life, and has a longer battery life is no doubt the best choice.