Samsung Galaxy S21 Ultra vs Apple iPhone 13 Pro Max

Here we compared two flagship smartphones: the 6.8-inch Samsung Galaxy S21 Ultra (with Exynos 2100) that was released on January 14, 2021, against the Apple iPhone 13 Pro Max, which is powered by Apple A15 Bionic and came out 8 months after. 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

Key differences

An overview of the main advantages of each smartphone
Reasons to consider the Samsung Galaxy S21 Ultra
  • The rear camera has a 10x optical zoom
  • Newer Bluetooth version (v5.2)
  • Fingerprint scanner
  • Slow-motion recording at 960FPS
  • Uses a faster type of memory: LPDDR5 2750 MHz
  • Has 33% more RAM: 8GB versus 6GB
  • Has 2 SIM card slots
  • 12% higher pixel density (515 vs 458 PPI)
  • Reverse charging feature
  • CPU with a higher amount of cores (+2)
Reasons to consider the Apple iPhone 13 Pro Max
  • Shows 27% longer battery life (28:08 vs 22:05 hours)
  • Better camera quality (According to DxOMark rating)
  • 63% faster in single-core GeekBench 6 test: 2427 and 1486 points
  • The phone is 8 months newer

Review

Evaluation of Samsung Galaxy S21 Ultra and Apple iPhone 13 Pro Max 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
DeviceFacts Score
Final comparison evaluation
Select your primary usage scenario to get a more accurate DeviceFacts 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
8 / 128 GB
VS
6 / 128 GB
32.0
(Mediocre)
Value Index
82.3
(Good)

Tests and specifications

Comparison table of technical specifications and tests

Display

Type Dynamic AMOLED OLED
Size 6.8 inches 6.7 inches
Resolution 1440 x 3200 pixels 1284 x 2778 pixels
Aspect ratio 20:9 19.5:9
PPI 515 ppi 458 ppi
Refresh rate 120 Hz 120 Hz
Adaptive refresh rate Yes (10-120 Hz) Yes (10-120 Hz)
Max rated brightness 1500 nits 1000 nits
Max rated brightness in HDR - 1200 nits
HDR support Yes, HDR10+ Yes, Dolby Vision
Screen protection Gorilla Glass Victus -
Screen-to-body ratio 89.5% 87.7%
Display features - DCI-P3
- Always-On Display
- DCI-P3
Display tests
RGB color space - 99.9%
PWM - 238 Hz
Response time - 8.5 ms
Contrast - ∞ Infinity
Peak brightness test (auto)
1028 nits
1053 nits
Sources: NotebookCheck [3], [4]

Design and build

Height 165.1 mm (6.5 inches) 160.8 mm (6.33 inches)
Width 75.6 mm (2.98 inches) 78.1 mm (3.07 inches)
Thickness 8.9 mm (0.35 inches) 7.65 mm (0.3 inches)
Weight 227 g (8.01 oz) 240 g (8.47 oz)
Waterproof IP68 IP68
Rear material Glass Glass
Frame material Metal Metal
Colors Black, Silver, Gray, Blue Black, Silver, Gold, Blue, Green
Fingerprint scanner Yes, in-display No
Screen-to-body ratio

Performance

Chipset specifications of Samsung Galaxy S21 Ultra and Apple iPhone 13 Pro Max
SoC
Chipset Samsung Exynos 2100 Apple A15 Bionic
Max clock 2900 MHz 3230 MHz
CPU cores 8 (1 + 3 + 4) 6 (2 + 4)
Architecture - 4 cores at 2.2 GHz: Cortex-A55
- 3 cores at 2.81 GHz: Cortex-A78
- 1 core at 2.91 GHz: Cortex-X1
- 4 cores at 2.02 GHz: Blizzard
- 2 cores at 3.23 GHz: Avalanche
Manufacturing Samsung TSMC
Lithography process 5 nanometers 5 nanometers
Neural processor (NPU) Yes Apple Neural Engine
GPU
Graphics Mali-G78 MP14 Apple GPU (5 cores)
GPU shading units 448 640
GPU clock 854 MHz 1338 MHz
FLOPS ~765.2 GFLOPS ~1712.6 GFLOPS

Benchmarks

Benchmark comparison of Samsung Galaxy S21 Ultra and Apple iPhone 13 Pro Max
Geekbench 6 (Single-Core)
Geekbench 6 (Multi-Core)
Compute Score (GPU)
Compute Score (GPU) 6870 21357
Single-core score 1486 2427
Multi-core score 3800 6142
Sources: Geekbench [3], [4]
AnTuTu Benchmark 11
1153673
CPU 420330 276639
GPU 186151 369897
Memory 193925 116764
UX 273776 390373
Total score 1074182 1153673
Samples [11 tests] [3 tests]
3DMark Solar Bay
Stability - 75%
Graphics test - 14 FPS
Section 1 - 19 FPS
Section 2 - 14 FPS
Section 3 - 9 FPS
Graphics score - 3785
3DMark Wild Life Extreme
Stability - 73%
Graphics test - 17 FPS
Graphics score - 2960
Sources: 3DMark [5], [6]

Recent User Tests

The latest benchmark tests that have been submitted by users
Samsung Galaxy S21 Ultra
DateBenchmarkResult
📘 2026-10-06 (Nurik)AnTuTu 12900228
📘 2026-09-30 -> fh_hxx19AnTuTu 121191592
📘 2026-09-30 -> fh_hxx19AnTuTu 121191592
📘 2026-07-22 (Squizzyyy)AnTuTu 11857016
📘 2026-06-02 (My name)AnTuTu 111271841
Apple iPhone 13 Pro Max
DateBenchmarkResult
📘 2026-10-12 -> HotPowerGeekbench 7 CPU2155 / 5548
📘 2026-09-23 -> HotPowerAnTuTu 111184759
📘 2026-09-19 -> HotPowerGeekbench 6 GPU21284
📘 2026-09-19 -> HotPowerGeekbench 6 CPU2423 / 5985
📘 2026-09-12 (Simon)AnTuTu 111146332

Memory

RAM
RAM size 8 GB 6 GB
Memory type LPDDR5 LPDDR4X
Memory clock 2750 MHz 2133 MHz
Channels 2 2
Storage
Storage size 128 GB 128 GB
Storage type UFS 3.1 NVMe
Memory card No No

Software

Operating system Android 11 (Can be upgraded to Android 15) iOS 15 (Can be upgraded to iOS 27)
ROM One UI 7.0 -
OS size 26.4 GB 13 GB
OS updates 2 years -
Security updates 4 years -

Battery

Capacity 5000 mAh 4352 mAh
Max charge power 25 W 23 W
Battery type Li-Ion Li-Ion
Replaceable No No
Wireless charging Yes (15 W) Yes (7.5 W)
Reverse charging Yes, (wireless) No
Bypass charging - No
Fast charging Yes (54% in 30 min) Yes (42% in 30 min)
Full charging time 1:11 hr 1:46 hr
Battery life tests
Web browsing 07:58 hr 11:16 hr
Watching video 13:59 hr 17:03 hr
Gaming 05:14 hr 06:41 hr
Standby 111 hr 136 hr
General battery life
22:05 hr
28:08 hr

Main camera

Matrix 108 megapixels 12 megapixels
Image resolution 12000 x 9000 4032 x 3024
Zoom Optical, 10x Optical, 3x
Flash Dual LED Dual LED
Stabilization Optical Optical
8K video recording Up to 24FPS No
4K video recording Up to 60FPS Up to 60FPS
1080p video recording Up to 60FPS Up to 60FPS
Slow motion 960 FPS (720p) 240 FPS (1080p)
Angle of widest lens 120° 120°
Lenses 1) Standard: 108 MP
2) Telephoto: 10 MP
3) Telephoto: 10 MP
4) Ultrawide: 12 MP
1) Standard: 12 MP
2) Telephoto: 12 MP
3) Ultrawide: 12 MP
4) Depth
Camera features - Bokeh mode
- Pro mode
- RAW support
- Bokeh mode
- Pro mode
- RAW support
Standard lens
Image resolution 108 MP 12 MP
Aperture f/1.8 f/1.5
Focal length 26 mm 26 mm
Sensor Samsung S5KHM3 Sony IMX703
Sensor size 1/1.33" (≈ 0.75 inch) 1/1.66" (≈ 0.6 inch)
Pixel size 0.8 micron 1.9 micron
Autofocus Laser autofocus Phase autofocus (Dual Pixel)
Stabilization Optical Optical
Telephoto lens
Image resolution 10 MP 12 MP
Aperture f/4.9 f/2.8
Focal length 240 mm 77 mm
Sensor Samsung S5K3J1 Sony IMX713
Sensor size 1/2.65" (≈ 0.38 inch) 1/3.4" (≈ 0.29 inch)
Pixel size 1.22 micron 1 micron
Stabilization Optical Optical
Ultra-wide lens
Image resolution 12 MP 12 MP
Aperture f/2.2 f/1.8
Focal length 13 mm 13 mm
Sensor Sony IMX563 Sony IMX772
Sensor size 1/2.55" (≈ 0.39 inch) 1/3.4" (≈ 0.29 inch)
Pixel size 1.4 micron 1 micron
Stabilization Digital Digital

DxOMark main camera tests

Photo quality
Video quality
Generic main camera score
Bokeh 70 75
Preview 67 81
Zoom 106 119
Samples Photo samples of Samsung Galaxy S21 Ultra from DxOMark Photo samples of Apple iPhone 13 Pro Max from DxOMark

Selfie camera

Megapixels 40 megapixels 12 megapixels
Image resolution 7864 x 5200 4032 x 3024
Aperture f/2.2 f/2.2
Focal length 26 mm 23 mm
Sensor Samsung S5KGH1 Sony IMX514
Sensor size 1/2.65" (≈ 0.38 inch) 1/3.6" (≈ 0.28 inch)
Pixel size 0.7 micron 1 micron
Autofocus Phase autofocus Phase autofocus (Dual Pixel)
Stabilization Digital Digital
Video resolution 2160p (4K) at 60 FPS 2160p (4K) at 60 FPS
Depth sensor (TOF 3D) No Yes
DxOMark front camera
Photo 133 128
Video 140 143

Connectivity

Wi-Fi standard Wi-Fi 6E (802.11 a/b/g/n/ac/ax) Wi-Fi 6 (802.11 a/b/g/n/ac/ax)
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 5.2 5
Bluetooth features LE, A2DP LE, A2DP
USB type USB Type-C -
USB version 3.2 2
USB features - Charging
- USB-Storage mode
- USB-Host mode
- OTG
- Charging
- USB-Storage mode
- OTG
GPS GPS, GLONASS, Beidou, Galileo GPS, GLONASS, Beidou, Galileo, QZSS
NFC* Yes Yes
Infrared port No No
Network
Number of SIM* 2 1
Type of SIM card Nano Nano
Multi SIM mode Standby -
eSIM support* Yes Yes
Hybrid slot No No
LTE Cat* 24 18
5G support Yes Yes

Sound

Speakers Stereo Stereo
Headphone audio jack No No
FM radio No No
Dolby Atmos Yes Yes
Speakers test
Max loudness
88 dB

Other

Category Flagship Flagship
Announced January 2021 September 2021
Release date February 2021 September 2021
Launch price (MSRP) $1200 $1100
Successor - Samsung Galaxy S22 Ultra - Apple iPhone 17 Pro Max
SAR (head) 0.71 W/kg 0.99 W/kg
SAR (body) 1.58 W/kg 0.98 W/kg
Sensors - Hall-effect sensor
- Barometer
- Proximity sensor
- Gyroscope
- Accelerometer
- Ambient light sensor
- Compass
- Fingerprint
- Barometer
- Proximity sensor
- Gyroscope
- Accelerometer
- Ambient light sensor
- Compass
- Face recognition sensor
*Disclaimer! NFC, GSM network support, and some other specs can be different depending on the country.

Conclusion

After analyzing all the data, we think that the Apple iPhone 13 Pro Max is definitely a better buy.

Cast your vote

So, which phone would you choose?
3207 (54.5%)
2681 (45.5%)
Total votes: 5888

User opinions

You can share your opinion or ask a question in the comments below
🌐 Register your profile and become part of DeviceFacts community!
Avatar
User 8113 December 9, 2021 at 10:37 AM
The Galaxy s21 ultra has the highest number of features so it's the winner.
+41 Reply
Avatar
ok. December 22, 2021 at 05:13 PM
s21 ultra’s absolutely garbage
+57 Reply
Avatar
Armaa Singh October 9, 2021 at 06:08 PM
Why the overall score is too high of iphone 13. It should be 95 s21 and 93 for 13
+25 Reply
root October 10, 2021 at 11:45 AM
Hi. Every score category has its own weight. They are not equal.
+26 Reply