Fitbit Versa 2
Tech specs 
SizeScreen size 40 x 40mm
Small: Fits wrist 140 mm - 180 mm in circumference
Large: Fits wrist 180 mm - 220 mm in circumference
MaterialThe classic band is made of a flexible, durable material similar to that used in many sports watches, and includes an aluminium watch case and buckle. The woven band is made from a comfortable polyester and includes an aluminium watch case and buckle.
Battery life5+ days. Charge time (0-100%): 2 hours.
Water-resistanceup to 50 metres (swim-proof) - 5 ATM
Weight40 grams
Sensor3-axis accelerometer, Optical heart rate monitor, Altimeter, Ambient light sensor, Vibration motor, Wi-Fi antenna (802.11 b/g/n), Relative SpO2 sensor, NFC, Built-in microphone
DisplayColour AMOLED touchscreen, 300 x 300 pixel resolution
Screen size1.4 inches
ColorsComes in a number of colours. Also there's a regular and special edition (which comes with an additional woven band and 90 day trial to Fitbit Premium).
Other- Saves 7 days of detailed motion data, minute by minute
- Saves daily totals for the last 30 days
- Stores heart rate data at 1-second intervals during exercise tracking and at 5-second intervals all other times
Activity tracking 
Calories burnedYes
SleepYes (light, deep & REM)
Heart rateYes (Stores heart rate data at 1 second intervals during exercise tracking and at 5 second intervals all other times)
Stress & recovery
Pulse OxYes
Respiration rate
UV exposure
Skin temperature
Galvanic skin response
Hydration level
Calorie intake
Running features
Swimming features
Other - Guided breathing sessions
- Female health tracking
Non-fitness functions 
Smartphone notificationsCall, text and calendar notifications
On-board music storageYes, 2.5GB (300 songs) + access Pandora, Spotify, Deezer
Connected payYes
Affiliate link*Amazon
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