Just facts - from EPREL on overall mobile device endurance - no assessments

Thank God for the EU (& the UK) for forcing OEMs to truthfully report their
mobile device performance (including the UK's battery life requirements).

As of June 20, 2025, all OEMs selling mobile devices in the EU have to
formally report standard benchmarks where all the OEMs used the same
official testing 3rd parties & where all the OEMs knew the standards years
ahead of time, such that EPREL is a wealth of benchmark data where all the
tests were run similarly on all devices. 

IMHO, the EPREL is truly the Holy Grail of benchmarks.
(too bad no USA-specific models were included)

Go to https://eprel.ec.europa.eu/screen/product/smartphonestablets20231669
 Enter "Google" in the "Brand or trademark" field.
  Battery endurance per cycle
   GUR25 49h 12min
   GEC77 50h 44min
   G6GPR 40h 06min
   GZC4K 49h 30min
   GTF7P 52h 19min

Google Battery Endurance Summary
  Original decimal average:
  Total = 241.85 hours, Average over 5 models = 48.37 hours

  Rounded to nearest whole hour (Apple-style):
  Values: 49, 51, 40, 50, 52 ? Total = 242 ? Average = 48.4 hours

  Truncated to whole hour (Apple-style):
  Values: 49, 50, 40, 49, 52 ? Total = 240 ? Average = 48.0 hours

Go to https://eprel.ec.europa.eu/screen/product/smartphonestablets20231669
 Enter "Samsung" in the "Brand or trademark" field.
 Battery endurance per cycle
  SM-S937B/DS 40h 05min
  SM-X210R 98h 32min
  SM-X216R 55h 14min
  SM-G766B 38h 15min
  SM-X350 142h 50min
  SM-X356B 142h 50min
  SM-X526E 96h 32min
  SM-X620 99h 06min
  SM-X520 96h 32min
  SM-X626B 99h 06min
  SM-X526B 96h 32min
  SM-A266B/DS 37h 05min
  SM-A566B/DS 44h 34min
  SM-A366B/DS 41h 28min
  SM-S936B/DS 43h 38min
  SM-S938B/DS 44h 54min
  SM-A165F/DSB 45h 10min
  SM-A166B/DS 43h 30min
  SM-X820 73h 44min
  SM-X920 85h 18min
  SM-X826B 73h 44min
  SM-X926B 85h 18min
  SM-S721B/DS 42h 00min
  SM-G556B 41h 22min
  SM-S921B/DS 41h 26min
  SM-X300 62h 31min
  SM-X306B 62h 31min

  Total hours: 2,056.96
  Average = Total / 28 models = 2,056.96 / 28 = 73.46 hours

Go to https://eprel.ec.europa.eu/screen/product/smartphonestablets20231669
 Enter "Apple" in the "Brand or trademark" field.
  A3267 62h 00min
  A3268 72h 00min
  A3355 67h 00min
  A3269 72h 00min
  A3354 67h 00min
  A3266 62h 00min
  A3409 41h 00min
  A2993 67h 00min
  A2995 67h 00min
  A3293 37h 00min
  A3290 48h 00min
  A3296 48h 00min
  A3287 37h 00min
  A2836 73h 00min
  A2837 73h 00min
  A2925 77h 00min
  A2926 77h 00min
  A3090 34h 00min
  A3094 45h 00min

  Total hours = 1,199.0
  Average = 1,199.0 / 19 = 63.1 hours 

Note: It makes no difference if you re-calculate all the numbers
Apple-style, which is a truncation apparently, as I ran all the numbers
three ways, namely as is, by rounding, and by truncation. Hence, Apple's
(clever) marketing spin that they reported numbers "lower" than they could
have is meaningless and, worse (much worse) Apple's (brilliant) truncation
cast untoward aspersions on the entire formal process that every OEM,
including Apple, had themselves already long ago been part of.

Overall, Samsung models, based on EPREL data, have a 10 hour advantage.
That's a whopping ~16% higher average battery endurance per cycle.
However, Apple had a decided advantage over Google mobile devices.

I'll send a separate post with a breakdown by smartphones vs tablets.
Especially as Google doesn't have tablets to bring the averages up.

And I'll show the proof that it doesn't matter how you round or truncate
the numbers - they still end up being the same within minor differences.
-- 
I'm all about facts where I generally don't believe marketing benchmarks.