Withings BPM Core
Tech specs 
Dimensions560x165x450mm (unfolded)
Arm circumference: 9" to 17" (22 cm to 42 cm)
Power sourceCharge via micro-USB cable Battery life: up to 6 months
ConnectivityBluetooth Smart, WiFi
Weight430 grams
DisplayLED matrix screen
Number of usersMulti-user
Upper arm cuffYes
Wrist cuff
Metrics 
Systolic & DiastolicYes
PulseYes
Irregular heart beat detectionYes
OtherStethoscope: Silicone membrane with a stainless steel support (detection of valvular heart disease)
ECG: 3 Stainless steel electrodes - Detection of atrial fibrillation (AFib)
All blood pressure readings automatically sync with the Health Mate app, which creates an easy-to-understand chart of all your measurements. Unlimited storage on Withings cloud. Up to 8 measurements on-device between synchronizations.
Links 
Affiliate link*Withings
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