Samsung Galaxy Watch Active 2
Tech specs 
Size40mm and 44mm variant
MaterialStainless Steel (Bluetooth version) or Lightweight Aluminum design (LTE models)
ChargingWPC based wireless charging
Battery40mm: 247mAh
44mm: 340 mAh
Battery lifeBetween 1 and 2 days (depending on use)
Water-resistance5 ATM
Weight40mm: 26 grams (Aluminium case)
44mm: 30 grams (Aluminium case)
SensorHeart Rate Monitoring (with 8 Photodiodes), Electrocardiogram (ECG), Accelerometer (measure up to 32g of force), GPS (Glonass,Beidou,Galileo), NFC. There's also an LTE model.
DisplaySuper AMOLED
Screen size40mm: 1.2-inch S-AMOLED display (360 x 360 pixels resolution)
44mm: 1.4-inch S-AMOLED display (360 x 360 pixels resolution)
OtherOperating system: Tizen
Processor: Exynos 9110 Dual core 1.15 GHz
Memory: 768MB and 1.5GB of RAM (LTE model)
Connectivity: Bluetooth® 5.0, Wi-Fi b/g/n, NFC, A-GPS/GLONASS/Galileo/Beidou
Activity tracking 
Calories burnedYes
Heart rateYes
Stress & recoveryYes
Pulse Ox
Respiration rate
UV exposure
Skin temperature
Galvanic skin response
Hydration level
Calorie intakeYes (through the app)
Running features
Swimming features
Other - ECG
- Fall alerts?
- Monitors blood pressure through an optional research app.
Non-fitness functions 
Smartphone notificationsYes
On-board music storageYes
Connected payYes
LTEYes (selected models)
Affiliate link*Amazon | Samsung
Read moreArticle
*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.