Samsung Galaxy S21 Ultra vs Galaxy S10

76 out of 100

61 out of 100

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 Samsung Galaxy S10, which is powered by Exynos 9 Octa 9820 and came out 23 months before. On this page, you will find tests, full specs, strengths, and weaknesses of each of the devices.

Differences
Review
Specs
Benchmarks
Battery life
Camera
Comments

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
Higher display refresh rate – 120 Hz
Comes with 1600 mAh larger battery capacity: 5000 vs 3400 mAh
Has a 0.7 inch larger screen size
Shows 50% longer battery life (31:14 vs 20:46 hours)
Newer Bluetooth version (v5.2)
28% better performance in AnTuTu Benchmark (833K versus 648K)
Uses a faster type of memory: LPDDR5 2750 MHz
Delivers 24% higher peak brightness (1023 against 822 nits)
More recent OS version: Android 13 versus 12
Supports higher wattage charging (25W versus 15W)
The phone is 1-year and 11-months newer

Reasons to consider the Samsung Galaxy S10

Expandable storage via MicroSD card up to 512GB
Weighs 70 grams less
Better grip in hands – the body is 5.2 mm narrower
Includes a 3.5 mm headphone audio jack port

Review

Evaluation of Samsung Galaxy S21 Ultra and Galaxy S10 crucial features

Display

Screen quality, color accuracy, brightness

Type	Dynamic AMOLED	Super AMOLED
Size	6.8 inches	6.1 inches
Resolution	1440 x 3200 pixels	1440 x 3040 pixels
Aspect ratio	20:9	19:9
PPI	515 ppi	551 ppi
Refresh rate	120 Hz	60 Hz
Adaptive refresh rate	Yes	No
Max rated brightness	1500 nits	1215 nits
HDR support	Yes, HDR10+	Yes, HDR10+
Screen protection	Gorilla Glass Victus	Corning Gorilla Glass 6
Screen-to-body ratio	89.8%	88.08%
Display features	- DCI-P3 - Always-On Display	- DCI-P3 - Always-On Display

RGB color space	-	98.1%
PWM	-	240 Hz
Response time	-	4.8 ms
Contrast	-	∞ Infinity

Height	165.1 mm (6.5 inches)	149.9 mm (5.9 inches)
Width	75.6 mm (2.98 inches)	70.4 mm (2.77 inches)
Thickness	8.9 mm (0.35 inches)	7.8 mm (0.31 inches)
Weight	227 g (8.01 oz)	157 g (5.54 oz)
Waterproof	IP68	IP68
Rear material	Glass	Glass
Frame material	Metal	Metal
Colors	Black, Silver, Gray, Blue	White, Black, Blue, Green
Fingerprint scanner	Yes, in-display	Yes, in-display

Chipset	Samsung Exynos 2100	Samsung Exynos 9 Octa 9820
Max clock	2840 MHz	2730 MHz
CPU cores	8 (1 + 3 + 4)	8 (2 + 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 1.95 GHz: Cortex-A55 - 2 cores at 2.31 GHz: Cortex-A75 - 2 cores at 2.73 GHz: Mongoose M4
Lithography process	5 nanometers	8 nanometers
Graphics	Mali-G78 MP14	Mali-G76 MP12
GPU shading units	896	432
GPU clock	854 MHz	720 MHz
FLOPS	~1530.4 GFLOPS	~607 GFLOPS

CPU	236566	148103
GPU	255535	236968
Memory	157504	121310
UX	183564	141476
Total score	833650	648880

Max surface temperature	40.8 °C	40.6 °C
Stability	69%	82%
Graphics test	31 FPS	19 FPS
Graphics score	5221	3230

Web score	-	6523
Video editing	-	5794
Photo editing	-	18751
Data manipulation	-	7126
Writing score	-	10017

RAM size	12, 16 GB	8 GB
Memory type	LPDDR5	LPDDR4X
Memory clock	2750 MHz	2133 MHz
Channels	2	2

Storage size	128, 256, 512 GB	128 GB
Storage type	UFS 3.1	UFS 2.1
Memory card	No	MicroSD
Memory card max size	-	Up to 512 GB

Operating system	Android 11 (Can be upgraded to Android 13)	Android 9.0 (Can be upgraded to Android 12)
ROM	One UI 5.1	One UI 4.0
OS size	26.4 GB	9.5 GB

Capacity	5000 mAh	3400 mAh
Max charge power	25 W	15 W
Battery type	Li-Ion	Li-Po
Replaceable	No	No
Wireless charging	Yes (15 W)	Yes, Qi/PMA (9 W)
Reverse charging	Yes, (wireless)	Yes, (wireless)
Fast charging	Yes (54% in 30 min)	Yes, Samsung Adaptive Fast Charge (50% in 30 min)
Full charging time	1:11 hr	1:35 hr

Battery life tests
Web browsing	10:13 hr	06:12 hr
Watching video	15:32 hr	10:32 hr
Gaming	05:26 hr	03:23 hr
Standby	98 hr	70 hr

Main camera
Matrix	108 megapixels	12 megapixels
Image resolution	12000 x 9000	4000 x 3000
Zoom	Optical, 10x	Optical, 2x
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 240FPS
Slow motion	960 FPS (720p)	960 FPS (720p)
Angle of widest lens	120°	123°
Lenses	4 (108 MP + 10 MP + 10 MP + 12 MP)	3 (12 MP + 12 MP + 16 MP)
Wide (main) lens	- 108 MP - Aperture: f/1.8 - Focal length: 26 mm - Pixel size: 0.8 micron - Sensor: 1/1.33", Samsung S5KHM3 (ISOCELL Plus CMOS) - Laser autofocus - Optical stabilization	- 12 MP - Aperture: f/1.5 - 2.4 - Focal length: 26 mm - Pixel size: 1.4 micron - Sensor: 1/2.55", Samsung SAK2L4 (ISOCELL CMOS) - Phase autofocus (Dual Pixel) - Optical stabilization
Telephoto lens	- 10 MP - Aperture: f/4.9 - Focal length: 240 mm - Pixel size: 1.22 micron - Sensor: 1/2.65", Samsung S5K3J1 (ISOCELL CMOS) - Phase autofocus (Dual Pixel) - Optical stabilization	- 12 MP - Aperture: f/1.5 - Focal length: 52 mm - Pixel size: 1 micron - Sensor: 1/3.6", Samsung S5K3M3 (ISOCELL CMOS) - Phase autofocus - Optical stabilization
Ultra-wide lens	- 12 MP - Aperture: f/2.2 - Focal length: 13 mm - Pixel size: 1.4 micron - Sensor: 1/2.55", Sony IMX563 (Exmor-RS CMOS) - Phase autofocus (Dual Pixel)	- 16 MP - Aperture: f/2.2 - Focal length: 12 mm
Camera features	- Bokeh mode - Pro mode - RAW support	- Bokeh mode - Pro mode - RAW support
Samples	Photo samples of Samsung Galaxy S21 Ultra from DxOMark	-

Selfie camera
Megapixels	40 megapixels	10 megapixels
Image resolution	7864 x 5200	4320 x 2432
Aperture	f/2.2	f/1.9
Focal length	26 mm	26 mm
Pixel size	0.7 microns	1.22 microns
Sensor type	ISOCELL CMOS	CMOS
Sensor size	1/2.65"	1/2.65"
Video resolution	2160p (4K) at 60 FPS	2160p (4K) at 60 FPS

Wi-Fi standard	Wi-Fi 6E (802.11 a/b/g/n/ac/ax)	Wi-Fi 6 (802.11 a/b/g/n/ax)
Wi-Fi features	- Dual Band - Wi-Fi MiMO - Wi-Fi Direct - Wi-Fi Hotspot - Wi-Fi Display	- Dual Band - Wi-Fi Direct - Wi-Fi Hotspot
Bluetooth version	5.2	5
Bluetooth features	LE, A2DP	PBAP/PAB, PAN, OPP, MAP, LE, HSP, HID, HFP, DIP, AVRCP, A2DP
USB type	USB Type-C	USB Type-C
USB version	3.2	3.1
USB features	- Charging - USB-Storage mode - USB-Host mode - OTG	- Charging - USB-Storage mode - OTG
GPS	GPS, GLONASS, Beidou, Galileo	GPS, GLONASS, Beidou, Galileo
NFC *	Yes	Yes
Infrared port	No	No

Number of SIM *	2	2
Type of SIM card	Nano	Nano
Multi SIM mode	Standby	Standby
eSIM support *	Yes	No
Hybrid slot	No	Yes
LTE Cat *	24	20
5G support	Yes	No

Speakers	Stereo	Stereo
Headphone audio jack	No	Yes
FM radio	No	No
Dolby Atmos	Yes	Yes

Category	Flagship	Flagship
Announced	January 2021	February 2019
Release date	February 2021	March 2019
SAR (head)	0.71 W/kg	0.48 W/kg
SAR (body)	1.58 W/kg	1.59 W/kg
Sensors	- Hall-effect sensor - Barometer - Proximity sensor - Gyroscope - Accelerometer - Ambient light sensor - Compass - Fingerprint	- Hall-effect sensor - Barometer - Proximity sensor - Gyroscope - Accelerometer - Ambient light sensor - Compass - Fingerprint

Samsung Galaxy S21 Ultra vs Galaxy S10

Samsung Galaxy S21 Ultra vs Galaxy S10

Key differences

Review

Value for money

Tests and specifications

Display

Design and build

Performance

Benchmarks

Memory

Software

Battery

Camera

DxOMark camera tests

Connectivity

Sound

Other

Conclusion