Sony Smart-B Trainer
TECH SPECS 
Charging1.5 hours via USB
Batterylithium-ion
Battery lifeGPS enabled: Approx. 3 hours (Bluetooth® enabled) / Approx. 4.5 hours (Bluetooth® enabled)
GPS enabled (Stamina mode): Approx. 3.5 hours (Bluetooth® enabled) / Approx. 5.5 hours (Bluetooth® disabled)
GPS disabled: Approx. 4 hours (Bluetooth® enabled) / Approx. 6 hours (Bluetooth® disabled)
GPS enabled: Approx. 3.5 hours (Bluetooth® enabled) / Approx. 5 hours (Bluetooth® disabled)
GPS disabled: Approx. 6 hours*15 (Bluetooth® enabled) / Approx. 13.5 hours (Bluetooth® disabled)
Water resistanceIPX5 / IPX8
Weight43 grams
SensorHeart rate, GPS, accelerometer, gyroscope, electronic compass, barometer
ConnectionBluetooth
SoundFiles that can be played: MP3, WMA*9, ATRAC, Linear PCM*10, AAC*9
Number of songs that can be stored: MP3 128kbps/Approx. 3,900 songs
High quality sound technology: 9mm EX headphones
ControlsTouch
Other
METRICS 
StepsYes
DistanceYes
CaloriesYes
ActivityYes
Floorsaltitude
SleepYes
Heart rateYes
VO2 MaxNo
UV exposureNo
Skin temperatureNo
Galvanic skin responseNo
GPSYes
NotificationsNo
Other metrics
LINKS 
View onAmazon
Amazon US rating3.8 out of 5 stars
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