S4 44mm has a 1.12 WHr battery

[JPack]

S4 GPS/LTE 44 mm - 1.12 Whr
S4 GPS/LTE 40 mm - 0.86 Whr

S3 LTE 42/38 mm - 1.07 Whr
S3 GPS 42/38 mm - 1 Whr

S2 42 mm - 1.27 Whr
S2 38 mm - 1.03 Whr

https://www.apple.com/legal/more-resources/docs/apple-product-information-sheet.pdf

 

[Julien]

Good find. Apple like most love to use mAh as a stated rating since it sounds a little better. However without knowing voltage mAh is useless. Wh is a true measurement of capacity but 1.12 Wh (112 mWh) is a tiny battery. For reference a Tesla S 100D has a 100,000 Wh battery. Also if you were to power an incandescent 60 Watt bulb it would only work for a couple of seconds. Think about that next time you are wondering why your battery can't last for days. In order to last for 18 hours it can only draw an average of 0.062 Watts RMS.