Garmin Vivosmart HR+Garmin Vivosport
Tech specs 
SizeWidth: 21.0 mm
Thickness: 15 mm
Width: 21.0 mm
Thickness: 10.9 mm
MaterialSiliconeCase material: fiber-reinforced polymer
Lens material: chemically strengthened glass
BatteryLithium batteryRechargeable lithium-ion
Battery lifeUp to 5 days watch/activity tracking mode (24/7 heart rate monitoring, no GPS) or up to 8 hours using GPSGPS mode: Up to 8 hours
Smartwatch mode: Up to 7 days
Water-resistanceUp to 50 metres (5 ATM)Swim
WeightRegular: 31.0 g
Large: 33.0 g
Small/medium: 24.1 g
Large: 27.0 g
Sensor3 axis-accelerometer, altimeter, heart rate monitor, vibration alert, GPSGPS, barometric altimeter, compass, accelerometer, heart rate
DisplayTouchscreen,160 x 68 pixels, sunlight-visible, transflective memory-in-pixel (MIP)sunlight-visible, transflective memory-in-pixel (MIP), 72 x 144 pixels
Screen size25.3 mm x 10.7 mm9.7 mm x 19.3 mm
ColorsBlack, Imperial Purple, Midnight BlueSlate, Limelight, Fuchsia Focus
OtherMEMORY: 7 timed activities, 14 days of activity tracking dataMEMORY: 7 timed activities, 14 days of activity tracking data
Activity tracking 
Heart rate24/7Yes
Stress & recoveryYes
UV exposure
Skin temperature
Galvanic skin response
Running featuresAccelerometer (calculates distance for indoor workouts, without need for a foot pod), personal records, virtual pacer (compares current pace to target).Preloaded running profiles, GPS based distance/time/pace
Swimming features
Smartphone notificationsYesYes
Other Clock, music control, auto goal, move bar- all day stress tracking
- gym workout tracking
- music control, find my phone, etc.
- Built in apps for running, cycling, cardio, walking, strength training, rep counting, stair-stepper.
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Amazon US rating3.8 out of 5 stars
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