The Galaxy S26+ is the model that one review singled out for heat. In a three-minute Asphalt Legends race, the Exynos 2600 in the S26+ added about 6 degrees Celsius to its starting temperature, against about 3 degrees for phones with Snapdragon chips, and another measurement found internal temperatures above 30 degrees even when only flicking through menus. Owners on Samsung's forums add that the phone warms in light use and during WhatsApp. The S26+ also charges at 45 W, so charging is a second heat source. Which chip you have decides the story, because the Exynos 2600 is on the S26 and S26+ outside North America, China and Japan, and US phones use a Snapdragon 8 Elite Gen 5.
Differential
Likely causes of “Samsung Galaxy S26+ gets hot or shows a temperature warning”, and how to tell them apart
- 1
The Exynos 2600 under a short burst of load
What separates it A three-minute game or a camera session adds noticeable heat and the frame rate drops
How to confirm Check Settings, About phone for the chip; on an Exynos S26+ keep sessions short and lower the game's graphics and frame rate
- 2
45 W charging
What separates it The back is hottest in the first half hour of a charge
How to confirm Charge idle on a hard surface with the case off; Samsung's 45 W adapter is the one to use
- 3
A messaging or social app in the background
What separates it The phone is warm in a pocket and WhatsApp or Instagram tops Battery usage
How to confirm Update the app, clear its cache and compare the temperature without it
- 4
Early One UI 8.5 behavior
What separates it The processor seems busy at rest after the update
How to confirm Install the newest patch and restart
- 5
A case that traps heat
What separates it The phone stays warm for an hour after charging
How to confirm Take the case off for a day and compare
Before you touch a setting
Record this first — changing settings destroys the evidence
- Whether this S26+ carries the Exynos 2600 or the Snapdragon chip, read from the model number
- Which of a 45 W charge, a game, a chat app or nothing at all makes the phone warm
- How warm it is at rest in a cool room with the screen off, by touch
- When the heat began relative to your One UI 8.5 update
Try in this order
0 of 6 completedRead the chip from the model number
ReversibleSettings, About phone: the model number tells you whether this S26+ is an Exynos 2600 model, which is where heat reports concentrate.
Shorten the heavy sessions
ReversibleOn an Exynos S26+, take a break from a game about every fifteen minutes and lower its graphics and frame rate.
Charge in cooler conditions
ReversibleSamsung's 45 W adapter, a hard surface, no case, and no use of the phone while it charges.
Look for the chatty app
ReversibleSettings, Battery, Battery usage: if WhatsApp or a social app leads with background time, update it and clear its cache.
Install the newest patch and restart
ReversibleSettings, Software update; Samsung is issuing patches for One UI 8.5 heat.
Run Safe mode for an hour
ReversibleHold the power key, Power off, Safe mode, and note whether the phone stays cool; report it through Samsung Members if not.
Model-specific
What is true of this model and not of its siblings
- The S26+ in numbers
- A 6.7-inch phone with a 4,900 mAh battery and 45 W wired charging, between the 4,300 mAh S26 and the S26 Ultra.
- Where the heat reports come from
- Owner threads on Samsung's forums, a hands-on piece from Android Authority about Exynos heat, and a review's 3-minute race test.
Stop boundary
When this stops being a self-service repair
- !A phone that is warm at rest in Safe mode should go to Samsung with the Members error report
- !If heat appears only while the Samsung 45 W adapter charges a case-free phone, ask for a test of the charging circuit
- !A back that is lifting or smells hot ends the discussion: stop using it
Evidence ledger
Sources behind this answer
Samsung's overheating guidance.
S26 owners describing heat in mild use.
A hands-on account of Exynos 2600 heat on the S26.
An S26 owner reporting heat in light use.
Per-model battery, charging, chip and display for the S26, S26+ and S26 Ultra.
Exact questions
Common questions
Does the Galaxy S26+ overheat more than the Snapdragon phones?+
A review measured the Exynos 2600 adding about 6 degrees in a three-minute race against about 3 degrees for Snapdragon phones, so Exynos S26+ owners should expect more warmth.
Which S26+ has the Exynos chip?+
Outside North America, China and Japan; US phones use the Snapdragon 8 Elite Gen 5.
Why is my S26+ hot while charging?+
It charges at 45 W, which generates heat; charge idle, without a case, on a hard surface.
When is S26+ heat a fault?+
When it is hot with the screen off in Safe mode in a cool room, or the back is swelling.