The Watch 7 44mm had a 425mAh battery, so it seems this generation will only have an incremental battery upgrade ... one it hadn't used since the Samsung Gear S in 2014 (see above). "The idea is ...

Samsung is reportedly looking to use new battery tech in its wearables – including Galaxy Watch and Galaxy Ring – as soon as later this year which would provide improved “energy density.” ...

and when compared the Huawei Watch with Gear S3, the Samsung's Smartwatch is way ahead of Huawei ones' as it offers a battery life of about 20 hours, which is underwhelming. The Samsung Gear S3 ...