Full Round Transflective Display.
Four-Button Design for
Professional Sports

Built for professional sports, the Amazfit Stratos 3 adopts a 1.34-inch full round transflective MIP display perfectly suitable for outdoor use; the brighter the light is, the clearer the display looks. The four physical buttons enable you to browse through the features and control the device without using the touch screen. This is especially useful while running or when your hands are shaky after intensive workouts. The 316L stainless steel body combined with reinforced plastic makes the watch robust while minimizing its weight, and the black silicone strap facilitates the ventilation and perspiration.

70 Hours Continuous GPS. Breaking Through the Limits Together with You

Freely adjust the power consumption of your endurance sports modes such as trail running, outdoor walking and climbing, so you can get from 35 hours to an impressive 70 hours of GPS continuous operating capacity.

The watch is also equipped with authoritative Firstbeat algorithms used by professional sports teams. They provide you with various professional data, so you can dramatically improve your exercise capacity while avoiding the risk of injuries caused by excessive workouts.

Biotracker^TM Heart Rate Sensor & 4-Satellite / 3-Modes GPS.

Huami Technology's proprietary BioTrackerTM PPG bio-tracking optical sensor brings heart-rate monitoring accuracy to a new level, which is comparable to the accuracy of sports heart rate bands. In addition to the 24-hour heart-rate monitoring, it provides warnings on excessively high heart rate and heart rate interval values. The integrated Sony GNSS chips support four different global positioning systems: GPS, GLONASS, BEIDOU and Galileo. You can combine any two of them to form three different positioning patterns, which enhances the positioning speed and tracking accuracy.

The integrated Sony GNSS chips support four different global positioning systems: GPS, GLONASS, BEIDOU and Galileo. You can combine any two of them to form three different positioning patterns, which enhances the positioning speed and tracking accuracy.

Store* and play your music directly from your Stratos 3 by connecting it to Bluetooth earphones. Enjoy the freedom of a phone free run!

Note: There is 2 GB of space available in the watch, which is enough to store approximately 400 songs of 5 MB each.

Specifications

Case Diameter

48.6mm
Case Thickness

13.4 mm
Weight (without strap)

Approx. 40.4 g
Body Material

316L stainless steel and zirconia ceramic bezel, reinforced plastic bottom case, 316L stainless steel button and U-shaped frame
Strap Material

Silicone
Strap Length

120 mm (long), 75 mm (short)
Strap Width

22 mm
Waterproof Rating

5 ATM (up to 50 meters water depth)
Display

1.34" full round MIP Transﬂective TFT Resolutio 320 x 320
Touch Screen

Corning Gorilla 3 generation tempered glass + anti-ﬁngerprint coating
Sensors

BioTracker™ PPG Bio-Tracking optical sensor

6-axis acceleration sensor

3-axis geomagnetic sensor

Air pressure sensor
Connectivity

Bluetooth 4.2 + BLE 5.0

WiFi 2.4GHz 802.11 b/g/n
Multiple Positioning

Four Satellites Three Modes (GPS + GLONASS / GPS + Galileo / GPS + BEIDOU)
Battery

300mAh lithium-ion polymer battery (typical value)
Charging Time

About 2.5 hours

Charging Method

USB Magnetic charging stand / 4-pins POGO pin
Battery Life

Smart mode: 7 days

Factory default settings and heart rate always on. Per day: Receive 150 messages, lift the wrist to see the time 30 times, 30 minutes of outdoor sports, 5 minutes of other operations.

Ultra endurance mode: 14 days

Factory default settings and heart rate always on. Per day: Receive 150 messages, lift the wrist to see the time 30 times, 30 minutes of outdoor sports, 5 minutes of other operations.

GPS continuous working time:

Accurate Mode：

35 hours (Access Heart Rate monitor, touch function, access notifications, always-on & low consumption LCD, raise wrist to update data 10 times per hour, GPS records once per second)

Balanced Mode：

45 hours (Access Heart Rate monitor, touch function, access notifications, always-on & low consumption LCD, raise wrist to update data 10 times per hour, GPS records once every 5 seconds)

Power Saving Mode：

70 hours (Turnoff heart rate monitor and touch function, turnoff notifications, always-on & low consumption LCD, raise wrist to update data 10 times per hour, GPS records once every minute)

Note: The GPS can be adjusted in 3 sports modes: Trail Running, Outdoor Walking and Climbing, other sports modes can only use the Accurate GPS mode.
Operating System

Amazﬁt OS
Supported Devices

Android 5.0 or iOS 10.0 and above
Accessories

Magnetic charging stand, user manual Application