Home > Smartphone comparison > Galaxy S26 Ultra vs OnePlus 15 – which one to choose?

Samsung Galaxy S26 Ultra vs OnePlus 15

91 out of 100
Samsung Galaxy S26 Ultra
VS
93 out of 100
OnePlus 15
Samsung Galaxy S26 Ultra
OnePlus 15

Here we compared two flagship smartphones: the 6.9-inch Samsung Galaxy S26 Ultra (with Qualcomm Snapdragon 8 Elite Gen 5) that was released on February 25, 2026, against the OnePlus 15, which is powered by Qualcomm Snapdragon 8 Elite Gen 5 and came out 4 months before. On this page, you will find tests, full specs, strengths, and weaknesses of each of the devices.

Select the amount of RAM to evaluate performance and value for money more precisely
Memory
  1. Differences
  2. Review
  3. Specs
  4. Benchmarks
  5. Battery life
  6. Camera
  7. Comments (12)

Key differences

An overview of the main advantages of each smartphone
Reasons to consider the Samsung Galaxy S26 Ultra
  • The rear camera has a 5x optical zoom
  • 11% higher pixel density (500 vs 450 PPI)
  • Supports Dolby Atmos sound technology
Reasons to consider the OnePlus 15
  • Comes with 2300 mAh larger battery capacity: 7300 vs 5000 mAh
  • Shows 36% longer battery life (39:14 vs 28:50 hours)
  • Higher display refresh rate – 165 Hz
  • Waterproof body (IP69 classification)
  • Supports higher wattage charging (120W versus 60W)
  • Delivers 22% higher peak brightness (3381 against 2776 nits)
  • Slow-motion recording at 480FPS
  • Has 2 SIM card slots
  • Faster storage type - UFS 4.1 versus UFS 4.0
  • Has a built-in infrared port

Review

Evaluation of Samsung Galaxy S26 Ultra and OnePlus 15 crucial features
Display
Screen quality, color accuracy, brightness
Camera
Photo and video recording quality
Performance
CPU and memory performance (apps, system)
Gaming
Capabilities for playing modern games
Battery
Battery life, charging type and speed
Connectivity
Networks, ports, data transmission
Scores with a red asterisk (*) are approximate and may change in the future as we gather more data.
NanoReview Score
Final comparison evaluation
Select your primary usage scenario to get a more accurate NanoReview Score
📱 Primary usage:

Value for money (Beta)

To get an accurate value-for-money index, update the default prices with actual prices from your country’s retailers (for the selected memory configs) and press the "Calculate" button.
Currency
12 / 256 GB
VS
12 / 256 GB
33.7
(Mediocre)
Value Index
66.9
(Good)

Tests and specifications

Comparison table of technical specifications and tests
Phone:
Galaxy S26 Ultra
vs
OnePlus 15

Display

Type Dynamic AMOLED AMOLED
Size 6.9 inches 6.78 inches
Resolution 1440 x 3120 pixels 1272 x 2772 pixels
Aspect ratio 19.5:9 19.5:9
PPI 500 ppi 450 ppi
Refresh rate 120 Hz 165 Hz
Adaptive refresh rate Yes (1-120 Hz) Yes (1-120 Hz)
Max rated brightness 1500 nits 1800 nits
Max rated brightness in HDR 2600 nits 6000 nits
HDR support Yes, HDR10+ Yes, Dolby Vision
Touch sampling rate 240 Hz 330 Hz
Screen protection Corning Gorilla Armor 2 Gorilla Glass Victus 2
Screen-to-body ratio 91.4% 91.2%
Display features - DCI-P3
- Always-On Display
- DC Dimming		 - DCI-P3
- Always-On Display
- DC Dimming
Display tests
RGB color space - 99.9%
PWM - 120 Hz
Response time - 3 ms
Contrast - ∞ Infinity
Peak brightness test (auto)
Galaxy S26 Ultra
2776 nits
OnePlus 15 +22%
3381 nits
Sources: NotebookCheck [3], [4]

Design and build

Height 163.6 mm (6.44 inches) 161.42 mm (6.36 inches)
Width 78.1 mm (3.07 inches) 76.67 mm (3.02 inches)
Thickness 7.9 mm (0.31 inches) 8.1 mm (0.32 inches)
Weight 214 g (7.55 oz) 211 g (7.44 oz)
Waterproof IP68 IP69
Advanced cooling Vapor chamber Vapor chamber
Rear material Glass Glass
Frame material Metal Metal
Colors White, Black, Silver, Blue, Pink, Purple Black, Gold, Purple
Fingerprint scanner Yes, in-display Yes, in-display
Repairability - Good (3.69/5)
Drop resistance - Good (C) · 90 drops
Screen-to-body ratio

Performance

Chipset specifications of Samsung Galaxy S26 Ultra and OnePlus 15
SoC
Chipset Qualcomm Snapdragon 8 Elite Gen 5 Qualcomm Snapdragon 8 Elite Gen 5
Max clock 4740 MHz 4600 MHz
CPU cores 8 (2 + 6) 8 (2 + 6)
Architecture - 6 cores at 3.63 GHz: Oryon Gen 3 Performance
- 2 cores at 4.74 GHz: Oryon Gen 3 Prime		 - 6 cores at 3.63 GHz: Oryon Gen 3 Performance
- 2 cores at 4.74 GHz: Oryon Gen 3 Prime
L3 cache 12 MB 12 MB
Manufacturing TSMC TSMC
Lithography process 3 nanometers 3 nanometers
Neural processor (NPU) Hexagon Hexagon
GPU
Graphics Adreno 840 Adreno 840
GPU shading units 1536 1536
GPU clock 1300 MHz 1300 MHz
FLOPS ~3993.6 GFLOPS ~3993.6 GFLOPS

Benchmarks

Benchmark comparison of Samsung Galaxy S26 Ultra and OnePlus 15
Geekbench 6 (Single-Core)
Geekbench 6 (Multi-Core)
Galaxy S26 Ultra +3%
11049
OnePlus 15
10732
Compute Score (GPU)
Galaxy S26 Ultra +16%
28391
OnePlus 15
24461
Compute Score (GPU) 28391 24461
Single-core score 3624 3607
Multi-core score 11049 10732
Sources: Geekbench [3], [4]
AnTuTu Benchmark 11
Galaxy S26 Ultra
3939244
OnePlus 15 +2%
4008294
CPU 1168602 1184036
GPU 1520337 1490867
Memory 448779 402813
UX 801526 930578
Total score 3939244 4008294
Samples [32 tests] [45 tests]
3DMark Steel Nomad Light
Stability 67% 78%
Graphics test 20 FPS 20 FPS
Graphics score 2737 2699
3DMark Solar Bay
Galaxy S26 Ultra
11990
OnePlus 15 +5%
12540
Graphics test 46 FPS 48 FPS
Section 1 58 FPS 56 FPS
Section 2 42 FPS 47 FPS
Section 3 37 FPS 39 FPS
Graphics score 11990 12540
3DMark Wild Life Extreme
Graphics test 42 FPS -
Graphics score 7123 -
Sources: 3DMark [5], [6]
PCMark 3.0
Galaxy S26 Ultra +35%
21111
OnePlus 15
15658
Web score 23390 15531
Video editing 8217 6678
Photo editing 37389 26644
Data manipulation 18322 14971
Writing score 32854 20874
AnTuTu 11 Ranking List (32nd and 26th place)
Submit your benchmark results

Recent User Tests

The latest benchmark tests that have been submitted by users
Samsung Galaxy S26 Ultra
DateBenchmarkResult
📘 2026-09-23 (Raze)AnTuTu 123920421
📘 2026-09-19 (Niko)AnTuTu 123439980
📘 2026-09-18 (KEKRiLL)AnTuTu 124208433
📘 2026-09-14 -> Mi7haAnTuTu 124485552
📘 2026-09-05 (Pavel)AnTuTu 113959848
Add View all (50)
OnePlus 15
DateBenchmarkResult
📘 2026-09-26 (ASCO🇺🇿)AnTuTu 123842868
📘 2026-09-08 -> aleshkaAnTuTu 123914618
📘 2026-09-05 (Mehdi)AnTuTu 113651261
📘 2026-08-24 -> Ang3L4DAnTuTu 114057387
📘 2026-08-15 (YurOk)AnTuTu 113870500
Add View all (59)

Memory

RAM
RAM size 12 GB 12 GB
Memory type LPDDR5X LPDDR5X
Memory clock 5300 MHz 5333 MHz
Channels 4 4
Storage
Storage size 256 GB 256 GB
Storage type UFS 4.0 UFS 4.1
Memory card No No

Software

Operating system Android 16 Android 16
ROM One UI 8.5 OxygenOS 16
OS size 33.2 GB 26 GB
OS updates 7 years 4 years
Security updates 7 years 6 years

Battery

Capacity 5000 mAh 7300 mAh
Max charge power 60 W 120 W
Battery type Li-Ion Silicon-Carbon (Si/C)
Replaceable No No
Wireless charging Yes (25 W) Yes (50 W)
Reverse charging Yes, (wireless) Yes, (wireless)
Bypass charging Yes Yes
Fast charging Yes (84% in 30 min) Yes (50% in 15 min)
Full charging time 0:43 hr 0:43 hr
Battery cycles - 1100 cycles
Battery life tests
Web browsing 10:12 hr 18:32 hr
Watching video 21:39 hr 28:44 hr
Gaming 06:42 hr 10:01 hr
Standby 130 hr 139 hr
General battery life
Galaxy S26 Ultra
28:50 hr
OnePlus 15 +36%
39:14 hr
Add your battery life

Main camera

Matrix 200 megapixels 50 megapixels
Image resolution 16320 x 12240 8192 x 6144
Zoom Optical, 5x Optical, 3.5x
Flash LED Dual LED
Stabilization Optical Optical
8K video recording Up to 30FPS Up to 30FPS
4K video recording Up to 120FPS Up to 120FPS
1080p video recording Up to 240FPS Up to 120FPS
Slow motion 240 FPS (1080p) 480 FPS (720p)
Angle of widest lens 120° 116°
Lenses 1) Standard: 200 MP
2) Telephoto: 50 MP
3) Telephoto: 10 MP
4) Ultrawide: 50 MP
1) Standard: 50 MP
2) Telephoto: 50 MP
3) Ultrawide: 50 MP
Camera features - Bokeh mode
- Pro mode
- RAW support		 - Bokeh mode
- Pro mode
- RAW support
Standard lens
Image resolution 200 MP 50 MP
Aperture f/1.4 f/1.8
Focal length 23 mm 24 mm
Sensor Samsung ISOCELL S5KHP2 Sony IMX906
Sensor size 1/1.3" (≈ 0.77 inch) 1/1.56" (≈ 0.64 inch)
Pixel size 0.6 micron 1 micron
Autofocus Laser autofocus Phase autofocus
Stabilization Optical Optical
Telephoto lens
Image resolution 50 MP 50 MP
Aperture f/2.9 f/2.8
Focal length 111 mm 85 mm
Sensor Sony IMX854 Samsung S5KJN5
Sensor size 1/2.52" (≈ 0.4 inch) 1/2.76" (≈ 0.36 inch)
Pixel size 0.7 micron 0.64 micron
Stabilization Optical Optical
Ultra-wide lens
Image resolution 50 MP 50 MP
Aperture f/1.9 f/2.0
Focal length 13 mm 16 mm
Sensor Samsung ISOCELL S5KJN3 OmniVision OV50D
Sensor size 1/2.5" (≈ 0.4 inch) 1/2.88" (≈ 0.35 inch)
Pixel size 0.7 micron 0.612 micron
Stabilization Digital Digital

DxOMark main camera tests

Photo quality
Video quality
Generic main camera score
Bokeh 165 -
Zoom 141 -
Samples Photo samples of Samsung Galaxy S26 Ultra from DxOMark -

Selfie camera

Megapixels 12 megapixels 32 megapixels
Image resolution 4000 x 3000 6560 x 4928
Aperture f/2.2 f/2.4
Focal length 23 mm 21 mm
Sensor Samsung ISOCELL S5K3LU Sony IMX709
Sensor size 1/3.2" (≈ 0.31 inch) 1/2.74" (≈ 0.36 inch)
Pixel size 1.12 micron 0.64 micron
Autofocus Phase autofocus (Dual Pixel) Phase autofocus
Stabilization Digital Digital
Video resolution 2160p (4K) at 60 FPS 2160p (4K) at 60 FPS
Depth sensor (TOF 3D) No No

Connectivity

Wi-Fi standard Wi-Fi 7 (802.11 a/b/g/n/ac/ax/be) Wi-Fi 7 (802.11 a/b/g/n/ac/ax/be)
Wi-Fi features - Dual Band
- Wi-Fi MiMO
- Wi-Fi Direct
- Wi-Fi Hotspot
- Wi-Fi Display		 - Dual Band
- Wi-Fi MiMO
- Wi-Fi Direct
- Wi-Fi Hotspot
- Wi-Fi Display
Bluetooth version 6.0 6.0
Bluetooth features LE LE
USB type USB Type-C USB Type-C
USB version 3.2 3.2
USB features - Charging
- USB-Storage mode
- OTG		 - Charging
- USB-Storage mode
- OTG
DisplayPort Yes Yes
GPS GPS, GLONASS, Beidou, Galileo, QZSS GPS, GLONASS, Beidou, Galileo, QZSS, NAVIC
NFC* Yes Yes
Infrared port No Yes
Network
Number of SIM* 1 2
Type of SIM card Nano Nano
Multi SIM mode Standby Standby
eSIM support* Yes Yes
Hybrid slot No No
5G support Yes Yes

Sound

Speakers Stereo Stereo
Headphone audio jack No No
FM radio No No
Dolby Atmos Yes No
Speakers test
Max loudness
Galaxy S26 Ultra +14%
92 dB
OnePlus 15
80.4 dB

Other

Category Flagship Flagship
Announced February 2026 October 2025
Release date March 2026 October 2025
Launch price (MSRP) $1299 $899
SAR (head) 1.28 W/kg -
SAR (body) 1.35 W/kg -
Sensors - Hall-effect sensor
- Barometer
- Proximity sensor
- Gyroscope
- Accelerometer
- Ambient light sensor
- Compass
- Fingerprint		 - Hall-effect sensor
- Proximity sensor
- Gyroscope
- Accelerometer
- Ambient light sensor
- Compass
- Fingerprint
Bundled charger Not included Not included
*Disclaimer! NFC, GSM network support, and some other specs can be different depending on the country.

Conclusion

If the battery life is more important to you, then choose the OnePlus 15. But if the display and sound are more of a priority – go for the Samsung Galaxy S26 Ultra.

Cast your vote

So, which phone would you choose?
191 (25.5%)
557 (74.5%)
Total votes: 748

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User opinions

You can share your opinion or ask a question in the comments below
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Avatar
Emperor September 29, 2026 at 06:43 AM
OnePlus 16/512 = $978 Samsung Galaxy S26 Ultra 12/512 = $1665 Samsung Galaxy S26 Ultra 16/1024 = $1978
+1 Reply
Avatar
Piy Aga May 28, 2026 at 08:05 AM
The water resistance rating given by OnePlus is a gimmick. It is not water resistant and bricked when mobile phone got wet under home shower.
+6 Reply
Avatar
Zack September 5, 2026 at 03:28 PM
It's not a big problem, and its specifications compared to its price make SAMSUNG look like thieves.
+1 Reply
Avatar
Kazzz April 18, 2026 at 12:20 PM
Why s26 ultra low rating
0 Reply
Avatar
Techie March 6, 2026 at 04:36 AM
The S26 Ultra is indeed better when it comes to superior Camera, AI, Multi task, Software and other stuff that other people need for premium feel and daily. On the other hand I'd say that the Oneplus 15 and its Battery are still superior by a long shot, And Great Daily flagship performance. Samsung doesn't handle the gaming very well since it isnt dedicated to gaming while oneplus went out to make a all round phone for gamers. Basically if you want premium go for S26 Ultra, And Go for Oneplus 15 for Gaming and all round. In comparison S26 ultra is a Race car and Oneplus 15 as a Rally Car.
+24 Reply
Avatar
March March 5, 2026 at 02:19 PM
The price difference is ₹67000 ($730) in india
+12 Reply
Avatar
Israel August August 7, 2026 at 08:51 PM
How much is it now? In Israel it's an $87 difference only
0 Reply
Avatar
Bob February 28, 2026 at 01:02 PM
Ya'll needa look at how this statistic is funny as oneplus was oct 2025 flagship vs feb 2026 s26 highest flagship. Being one digit above overall is just hilarious. Not to mention those people having Copium on saying Samsung is better. People need reality check as s26 ultra being highest flagship of samsung rn barely surpasses this outdated piece of android iphone hybrid of a phone in your wallet's budget that is the little brother of vivo find x9 pro. Not all phones are perfect, Find one that suits you, not one that you force yourself into.
+7 Reply
Avatar
to the bank February 2, 2026 at 03:46 PM
OnePlus 15 is worse than S26 Ultra because it is outdated.
+9 Reply
Avatar
ComputerNerd February 26, 2026 at 06:42 PM
Not because it is outdated. The S26 Ultra is just a better smartphone overall. The only advantages that the OnePlus 15 has over the Samsung S26 Ultra are battery life and lower price. In the US, it is $400 less.
+7 Reply
Avatar
Kola April 10, 2026 at 11:59 AM
ComputerNerd, Well, It also performs a lot better than the S26 Ultra in hot weather conditions with that Better Vapor Chamber. This was done in my home which usually sits around 25-32° in australia. Mind that s26 Ult drained 10% while my Oneplus 15 drained 6% and this was only an hour of gaming on the oneplus and playing music with the S26 U. yet I spent a load of aud 30%-45% more, just to get a faster draining battery, Their upgrades has been great but cooling is still quite bad.
+1 Reply
Avatar
ComputerNerd February 1, 2026 at 06:15 AM
I like the S26 Ultra better, but the price of the OnePlus 15 is low enough where the value makes it a steal. $900 vs Samsung S26 Ultra's price of $1300.
+6 Reply
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