Fitbit VersaSamsung Galaxy Watch Active
Tech specs 
SizeDimensions: 39.36 x 37.65 x 11.2mm
Large: Fits wrists 180 mm - 220 mm in circumference
Small: Fits wrists 140 mm - 180 mm in circumference
40mm, 39.5 x 39.5 x 10.5mm (H x W x D)
MaterialThe Fitbit Versa classic band is made of a flexible, durable material similar to that used in many sports watches, and includes an aluminum watch case and buckle.Case Material: Aluminium
Strap: Fluoroelastomer
Case Crystal: Gorilla Glass
ChargingUSBWireless Charging
BatteryLithium-polymer230mAh
Battery life4+ days. Charge time (0-100%): 2 hours.45 hours (90 hours low usage)
Water-resistanceup to 50 metres (swim-proof) - 5 ATM5 ATM
Weight38 grams25 grams
Sensor3-axis accelerometer, 3-axis gyroscope, optical heart rate monitor, altimeter, ambient light sensor, vibration motor, Pulse Ox, wi-Fi antenna (802.11 b/g/n), NFC (some versions)Accelerometer, Barometer, Gyro Sensor, HR Sensor, Light Sensor, GPS (Glonass,Beidou,Galileo), NFC
DisplayHi-res touchscreen (up to 1000 nits). Corning Gorilla Glass 3 display. 300x300 pixel resolution.Super AMOLED, 360 x 360 pixel resolution
Screen size1.34 inches1.1" (28.1mm)
ColorsComes in a number of different versionsBlack, Green, Rose Gold, Silver
Other- Saves 7 days of detailed motion data – minute by minute.
- Saves daily totals for past 30 days
Operating system: Tizen 4.0
Processor: Exynos 9110 Dual core 1.15GHz
Memory: 768MB RAM + 4GB Internal Memory
Connectivity: 3G/LTE, Bluetooth®4.2, 802.11 b/g/n 2.4GHz, NFC, A-GPS/Glonass
Activity tracking 
StepsYesYes
DistanceYesYes
Calories burnedYesYes
ActivityYesYes
FloorsYesYes
SleepYes (light, deep & REM)Yes
Heart rateYes (Stores heart rate data at 1 second intervals during exercise tracking and at 5 second intervals all other times)Yes
Stress & recoveryYes
Pulse OxYes
Respiration rate
UV exposure
Skin temperature
Galvanic skin response
Hydration level
Calorie intakeYes (through the app)
GPSYes
Running features
Swimming features
Other - Guided breathing sessions
- Female health tracking
Monitors blood pressure through an optional research app.
Non-fitness functions 
Smartphone notificationsCall, text and calendar notificationsYes
On-board music storageYes, 2.5GB (300 songs) + access PandoraYes
Connected payYesYes
LTE
Links 
Affiliate link*AmazonAmazon | Samsung
Read moreReviewArticle
*Disclosure: We are a professional review site that receives a small commission from sales of certain items, but the price is the same for you. See our affiliate disclosure page for more details.
**All tech specs and images on this page come from manufacturers. These may change over time as manufacturers sometimes update their devices. While we cannot guarantee absolute accuracy of information on this page, we promise to review this content regularly and do our best to bring you the most up-to-date information. To be absolutely sure of tech specs of a particular device, we recommend checking the manufacturer’s website.