I bought galaxy watch active 2 and connected it to a Oppo phone and and on the wearable app it tells me that I got 2 days+ of battery life. Later on after 5 months I change to iphone SE and connected it to the wearable app and the battery life displayed in the wearable is accurate. Sometime it tells me it can last 1day 18 hours then when the battery drop it tell me the watch can last 1 day 20hours. Was wandering anyone out there faced the same issue as me? And if there's a solution to this.
P.s I brought some to Samsung service centre and replace the battery and mother but it's still the same.