versus
Same size, different electrical family
The 11.6 × 5.4 mm envelope matches, but the electrical families do not: Alkaline manganese dioxide / zinc at 1.5 V nominal versus Silver oxide / zinc at 1.55 V nominal. Physical fit is not equivalence.
FieldLR44 / A76 / AG13SR44W / 357
Dimensions11.6 × 5.4 mm11.6 × 5.4 mm
Voltage1.5 V nominal1.55 V nominal
ChemistryAlkaline manganese dioxide / zincSilver oxide / zinc
Drain contextGeneral-purpose alkaline; sloping discharge profileW: higher-drain profile
This comparison supports a decision; it does not guarantee device fit.