Garmin Approach S20
TECH SPECS 
Dimensions37.4 x 47.6 x 11.3 mm
Weight42.2 g
BatteryRechargeable lithium-ion; battery life: up to 15 hours in GPS mode; up to 8 weeks in activity tracking mode
DisplaySunlight-visible, transflective memory-in-pixel (MIP); 23 x 23 mm; 128 x 128 pixels
Water resistance5 ATM
ConnectivityBluetooth Smart and ANT+
SensorsGPS Accelerometer
OtherMemory: 64 MB
FUNCTIONS 
Maps and coursesComes preloaded with more than 40,000 courses around the world — plus automatic map updates
DistancesYardage to F/M/B (distance to front, middle and back of green); yardage to layups/doglegs; measures shot distance (calculates exact yardage for shots from anywhere on course)
Shot trackingAutoShot round analyzer tracks shots3, measures distance and records shot locations for post-round analysis on Garmin Connect, Digital scorecard
Swing trainingCompatible with TruSwing™ Sensor Metrics
Activity trackingStep counter, move reminder, auto-goal, sleep monitoring, calories burned, distance travelled, TrueUp
NotificationsYes ( calls, texts and other alerts)
Other- Green View feature on your Approach S20 shows you the true shape and layout of the green
LINKS 
View onAmazon | Garmin
Amazon US rating4.3 out of 5 stars
Read moreArticle