What are differences between Smart Scale(T9140), Smart Scale C1(T9146), Smart Scale P1(T9147), Smart Scale P2 (T9148), and Smart Scale P2 Pro (T9149) ?

Model

T9140

Smart scale

T9146

Smart scale C1

T9147

Smart scale P1

T9148

Smart scale P2

T9149

Smart scale P2 Pro

wireless

Bluetooth

Bluetooth

Bluetooth

WiFi& Bluetooth

WiFi& Bluetooth

ITO/electrode

ITO

electrode

ITO

electrode

ITO

Division value

100g/0.2lb

100g/0.2lb

100g/0.2lb

50g/0.1lb

50g/0.1lb

weighing range

5-180kg

5-180kg

5-180kg

0.1-180kg

0.1-180kg

Activation Weight

5kg

5kg

5kg

3kg

3kg

Water-proof

-

-

-

IPX5

IPX5

Units of measurement

lb\kg\st

lb\kg

lb\kg

lb\kg\st

lb\kg\st

Model

T9140

T9146

T9147

T9148

T9149

Measurements

12

12

14

15

16

For pregnant

-

-

Simple mode

Simple mode

Simple mode

For baby

-

-

-

baby mode

baby mode

Track users

16

16

16

Unlimited

Unlimited

Diet Calories Record

-

-

-

Y

Y

3D body model

-

-

-

Y 

Y

Pet mode

-

-

-

Y

Y

Heart rate

-

-

-

-

Y

Model

T9140

T9146

T9147

T9148

T9149

Battery

4*AAA

3*AAA

3*AAA

4*AAA

4*AAA

tape measure

-

-

-

Y

Y