OnePlus 15T vs Samsung Galaxy A54 5G

OnePlus 15T

OnePlus

8.2

Compact battery champion

Samsung Galaxy A54 5G

Samsung

Best-value Samsung mid-ranger with flagship-tier updates

OnePlus 15T

What Reviewers Agree On

The 7,500 mAh silicon-carbon 'Glacier' battery is unprecedented in a 6.32-inch body and delivers roughly 1.5 days of real-world endurance — easily the longest battery life in the compact-flagship class.
Build quality is genuine flagship-grade: metal frame, IP66/IP68/IP69/IP69K dust + water resistance, ultrasonic in-display fingerprint sensor, and a 91% screen-to-body ratio with ~1.1 mm symmetric bezels.
The 6.32-inch 165 Hz 1.5K AMOLED reaches the advertised 1,800 nits in standard measurement and is marketed up to 3,600 nits peak — making it the only true 165 Hz compact-flagship display on the market.
Snapdragon 8 Elite Gen 5 + 16GB LPDDR5X Ultra Pro RAM hits Geekbench multi-core ~10,976 and 3DMark Wild Life Unlimited ~29,901 — top-tier flagship synthetic performance in a sub-200g chassis.
100W wired SuperVOOC and 50W wireless charging mean even the giant battery refills fast.

Pros & Cons

OnePlus 15T

Pros

The 7,500 mAh silicon-carbon 'Glacier' battery is unprecedented in a 6.32-inch body and delivers roughly 1.5 days of real-world endurance — easily the longest battery life in the compact-flagship class.
Build quality is genuine flagship-grade: metal frame, IP66/IP68/IP69/IP69K dust + water resistance, ultrasonic in-display fingerprint sensor, and a 91% screen-to-body ratio with ~1.1 mm symmetric bezels.
The 6.32-inch 165 Hz 1.5K AMOLED reaches the advertised 1,800 nits in standard measurement and is marketed up to 3,600 nits peak — making it the only true 165 Hz compact-flagship display on the market.
Snapdragon 8 Elite Gen 5 + 16GB LPDDR5X Ultra Pro RAM hits Geekbench multi-core ~10,976 and 3DMark Wild Life Unlimited ~29,901 — top-tier flagship synthetic performance in a sub-200g chassis.

Detailed Comparison

Battery & Charging

OnePlus 15T

This is the section the OnePlus 15T was built to win. The 7,500 mAh silicon-carbon 'Glacier' cell is the largest ever fitted to a true compact phone — 50% bigger than the iPhone 17's pack in a similar footprint. Notebookcheck measured roughly 1.5 days of real-world endurance at 150 cd/m². Wired charging tops out at 100 W, wireless at 50 W. The only friction points are the missing built-in magnets for MagSafe-style alignment and the still-USB-2.0 port.

OnePlus relies on a silicon-carbon-based battery with a large capacity of 7,500 mAh for its mini flagship — in our practical battery test at 150 cd/m² brightness, the 15T achieved an excellent battery life of nearly 1.5 days.
9to5Google's preview confirms the 7,500 mAh cell carries the same 'Glacier' moniker as the OnePlus 15's battery, so the silicon-carbon structure is here too — 200 mAh more than the larger sibling.
Even though the phone keeps the same compact size, it now packs a massive 7,500 mAh battery — to put that into perspective, the iPhone 17 Pro Max only has around 5,000 mAh, and this is a 6.32-inch phone.
Battery life is wild for a phone this size and is actually a hair bigger than the one in the OnePlus 15, which has a noticeably larger footprint.

TechTalkTown may earn a commission from purchases made through links below. As an Amazon Associate I earn from qualifying purchases. This does not influence our reviews. Learn more.

Buy OnePlus 15T

Buy Samsung Galaxy A54 5G

People Also Compare

Motorola Razr Fold vs OnePlus 15T Motorola Razr Fold vs Samsung Galaxy A54 5G OnePlus 15T vs Oppo Find X9 Ultra Oppo Find X9 Ultra vs Samsung Galaxy A54 5G Google Pixel 10a vs OnePlus 15T Google Pixel 10a vs Samsung Galaxy A54 5G OnePlus 15T vs Vivo X300 Ultra Samsung Galaxy A54 5G vs Vivo X300 Ultra Nothing Phone (4a) Pro vs OnePlus 15T Nothing Phone (4a) Pro vs Samsung Galaxy A54 5G Nothing Phone (4a) vs OnePlus 15T

Browse all reviews

Deal Breakers

China-only launch with no confirmed global release — ColorOS instead of OxygenOS, no eSIM support, no WearOS support, and missing European LTE band 20 and band 32 make it a compromise outside China.
Notebookcheck measured pronounced sustained-performance throttling of over 50% in 3DMark stress tests, with surface temperatures climbing past 46 °C; SuperSaf hit 50 °C on the back during Wildlife Extreme and saw scores drop from 6,990 to 3,743 inside a single loop.
No ultrawide camera at all — the 'triple camera' is just main + 16MP front + 3.5x periscope telephoto, which is a downgrade versus the OnePlus 15 for anyone who shoots landscapes, group photos or wide-angle video.
Charging port is still USB 2.0 in 2026, which SuperSaf calls 'a choice and not a good one' on a flagship-tier device at this price.
No built-in MagSafe-style magnets — wireless-charging accessories require a separate magnetic case to align properly.
Software-support window is uncertain: OnePlus has not committed to a specific update timeline for the Chinese-market 15T, and the global OnePlus 15 already commits to only 4 years of major Android upgrades — well behind Samsung and Google's 7-year promises.

Samsung Galaxy A54 5G

What Reviewers Agree On

Same 4 Android upgrades + 5 years of security as the S23 flagships — class-leading mid-range support taking it through Android 17
6.4-inch FHD+ Super AMOLED at 120Hz with up to 1000-nit peak — fluid, colorful and one of the best displays in its class
5,000mAh battery delivers reliable all-day use; long-term owners regularly get 1.5-2 day endurance
S23-inspired floating-camera design — premium-looking for a $449 mid-ranger, available in standout purple/lime/violet colors
microSD card slot expansion up to 1TB — rare on a 2023 smartphone, a key value-add over rivals
IP67 water/dust resistance, in-display fingerprint, Wi-Fi 6, Bluetooth 5.3, NFC — full feature set

Deal Breakers

Samsung's home-grown Exynos 1380 underpowers the phone — XDA/Reddit owners call it 'much more fitting of a handset that would cost half' the A54's price
Only 25W wired charging, no wireless charging at all — Pixel 7a at $50 more has both wireless and the better Tensor G2 chip
Plastic back instead of the A53's premium glass-feel back — most reviewers note this as a step backward
5MP macro camera is a tick-box spec — third rear lens delivers little real value
Digital Trends flagged 'disappointing battery life' in their full review, though most other reviewers find it strong

Cons

China-only launch with no confirmed global release — ColorOS instead of OxygenOS, no eSIM support, no WearOS support, and missing European LTE band 20 and band 32 make it a compromise outside China.
Notebookcheck measured pronounced sustained-performance throttling of over 50% in 3DMark stress tests, with surface temperatures climbing past 46 °C; SuperSaf hit 50 °C on the back during Wildlife Extreme and saw scores drop from 6,990 to 3,743 inside a single loop.
No ultrawide camera at all — the 'triple camera' is just main + 16MP front + 3.5x periscope telephoto, which is a downgrade versus the OnePlus 15 for anyone who shoots landscapes, group photos or wide-angle video.
Charging port is still USB 2.0 in 2026, which SuperSaf calls 'a choice and not a good one' on a flagship-tier device at this price.
No built-in MagSafe-style magnets — wireless-charging accessories require a separate magnetic case to align properly.
Software-support window is uncertain: OnePlus has not committed to a specific update timeline for the Chinese-market 15T, and the global OnePlus 15 already commits to only 4 years of major Android upgrades — well behind Samsung and Google's 7-year promises.

Samsung Galaxy A54 5G

Pros

Same 4 Android upgrades + 5 years of security as the S23 flagships — class-leading mid-range support taking it through Android 17
6.4-inch FHD+ Super AMOLED at 120Hz with up to 1000-nit peak — fluid, colorful and one of the best displays in its class
5,000mAh battery delivers reliable all-day use; long-term owners regularly get 1.5-2 day endurance
S23-inspired floating-camera design — premium-looking for a $449 mid-ranger, available in standout purple/lime/violet colors
microSD card slot expansion up to 1TB — rare on a 2023 smartphone, a key value-add over rivals
IP67 water/dust resistance, in-display fingerprint, Wi-Fi 6, Bluetooth 5.3, NFC — full feature set

Cons

Samsung's home-grown Exynos 1380 underpowers the phone — XDA/Reddit owners call it 'much more fitting of a handset that would cost half' the A54's price
Only 25W wired charging, no wireless charging at all — Pixel 7a at $50 more has both wireless and the better Tensor G2 chip
Plastic back instead of the A53's premium glass-feel back — most reviewers note this as a step backward
5MP macro camera is a tick-box spec — third rear lens delivers little real value
Digital Trends flagged 'disappointing battery life' in their full review, though most other reviewers find it strong