The professional teardown notes that Samsung is clearly confident that the Note7 battery issue was a manufacturing quality assurance one, and the S8 series’ battery is proof that it has faith in its eight-point plan.
The Galaxy 5.8” S8 teardown is here and the 6.2” S8+ is here and it is no surprise that apart from battery capacity and screen size they are internally identical with the S8+ having more space to accommodate the 17% larger capacity battery.
In Australia and most other international markets, Samsung uses its Exynos 8895, 10nm system on a chip. The 10nm Qualcomm Snapdragon 835 (which is made in Samsung foundries) is used in certain markets mainly to accommodate different carrier bands – both have similar performance.
Phone Arena found that when it comes to performance, there's no obvious winner. The Exynos, however, showed superior battery-life endurance.
iFixit notes that the fingerprint reader on the S8 has been moved to an awkward new home on the rear.
It notes that the rear camera module is the same as the S7 – a 12MP, OIS, large pixel, dual pixel, PADF, and HDR.
The front camera module has gone to 8MP with iris and facial recognition, OIS, autofocus and added a live GIF mode (same as the Note 7).
It awards both a four out of 10 repairability score, noting that many components are modular and can be replaced independently. It loses some points because tough adhesive and a glued-on rear panel make battery replacement unnecessarily difficult and extreme care is needed to remove the front glass without destroying the display.