Samsung Galaxy S21 Ultra vs Apple iPhone 15 Pro Max vs Samsung Galaxy S25 Ultra Specs Comparison

Availability

Officially announced
Jan 14, 2021	Sep 12, 2023	Jan 22, 2025
Prices (MSRP)
12GB/128GB - $1200 | €1399	8GB/256GB - $1199 | €1449 8GB/512GB - $1399 8GB/1TB - $1599	12GB/256GB - $1299 | €1449 12GB/512GB - $1420 12GB/1TB - $1660

Design

Dimensions
6.50 x 2.98 x 0.35 inches (~0.37 inches with camera bump) 165.1 x 75.6 x 8.9 mm (~9.4 mm with camera bump)	6.30 x 3.02 x 0.32 inches (~0.48 inches with camera bump) 159.9 x 76.7 x 8.25 mm (~12.28 mm with camera bump)	6.41 x 3.06 x 0.32 inches (~0.36 inches with camera bump) 162.8 x 77.6 x 8.2 mm (~9.1 mm with camera bump)
Weight
8.04 oz / 229.0 g	7.80 oz / 221.0 g	7.69 oz / 218.0 g
Materials
Back: Glass (Corning Gorilla Glass Victus) Frame: Aluminum	Back: Glass Frame: Titanium	Back: Glass (Corning Gorilla Glass Victus 2) Frame: Titanium
Resistance
Water, Dust; IP68	Water, Dust; IP68	Water, Dust; IP68
Biometrics
2D Face unlock, Ultrasonic in-screen fingerprint	3D Face unlock	Ultrasonic in-screen fingerprint
Features
		Stylus
Keys
Right: Volume control, Lock/Unlock key	Left: Volume control, Other; Right: Lock/Unlock key	Right: Volume control, Lock/Unlock key
Colors
Phantom black, Silver	Black Titanium, White Titanium, Blue Titanium, Natural Titanium	Titanium Silverblue, Titanium Black, Titanium Whitesilver, Titanium Gray

Display

Size
6.8-inch, 89.33% screen-to-body	6.7-inch, 89.75% screen-to-body	6.9-inch, 90.30% screen-to-body
Type
Dynamic AMOLED, 120Hz, HDR, 1500 nits	OLED, Variable 1-120Hz, HDR, 2000 nits	Dynamic AMOLED, 120Hz, HDR, 2600 nits
Resolution
3200x1440px, 20:9 ratio, 516 PPI	2796x1290px, 19.5:9 ratio, 460 PPI	3120x1440px, 19.5:9 ratio, 498 PPI
Protection
Corning Gorilla Glass Victus	Ceramic Shield	Corning Gorilla Glass Armor 2
Features
	Super Retina XDR, HDR support, Oleophobic coating, Scratch-resistant glass, Ambient light sensor, Proximity sensor

PhoneArena Display Test

Bright Max (20% APL)
Untested	2231 (Excellent)	2373 (Excellent)
Bright Min
1.5 (Good)	2 (Good)	0.8 (Excellent)

Learn more on our PhoneArena Display Test Results page.

Hardware

System chip
Snapdragon 888 SM8350 (5 nm)	A17 Pro (3 nm)	Snapdragon 8 Elite for Galaxy SM8750-AB (3 nm)
Processor
Octa-core 1x2.84GHz Kryo 680 3x2.42GHz Kryo 680 4x1.80GHz Kryo 680	Hexa-core 2x3.78GHz 4x2.11G​Hz	Octa-core 2x4.47GHz Oryon V2 PhoenixL 6x3.53GH​z Oryon V2 PhoenixM
GPU
Adreno 660	Apple GPU 6-core	Adreno 830
Memory
12GB (LPDDR5)/128GB (UFS 3.1) 12GB/256GB 16GB/512GB	8GB (LPDDR5)/256GB (NVMe) 8GB/512GB 8GB/1024GB	12GB (LPDDR5X)/256GB (UFS 4.0) 12GB/512GB 12GB/1024GB
Storage expansion
not expandable	not expandable	not expandable
OS
Android (14, 13, 12, 11)	iOS (18.x, 17.x)	Android (15), up to 7 OS updates

PhoneArena Performance Test

GeekBench 6 Single
1117	2958	3137
GeekBench 6 Multi
3312	7288	9769
3D Mark High
1963	4236	6208
3D Mark Low
1179	2632	2981

Learn more on our PhoneArena Performance Test Results page.

Battery

Type
5000 mAh, Li - Polymer	4422 mAh, Li - Ion	5000 mAh, Li - Ion
Charging
Qualcomm Quick Charge 2.0, USB Power Delivery, Samsung Adaptive Fast Charging Qi and Powermat wireless charging, Reverse wireless charging	Fast charging Qi2 wireless charging, MagSafe wireless charging	Fast charging Qi wireless charging, Reverse wireless charging
Charge speed
Wired: 25.0W Wireless: 15.0W	Wired: 25.0W Wireless: 15.0W	Wired: 45.0W Wireless: 15.0W

PhoneArena Battery Tests

Battery Life Estimate

6h 15min

Browsing

14h 43min

Video

8h 52min

Gaming

8h 40min

Battery Life Estimate

7h 26min

Browsing

19h 20min

Video

9h 45min

Gaming

9h 36min

Battery Life Estimate

8h 0min

Browsing

20h 49min

Video

8h 54min

Gaming

14h 21min

Learn more on our PhoneArena Battery Test Results page

Camera

Rear
Quad camera	Triple camera	Quad camera
Main camera
108 MP (OIS, Laser and PDAF) Aperture size: F1.8 Focal length: 24 mm Sensor size: 1/1.33" Pixel size: 0.8 μm	48 MP (Sensor-shift OIS, PDAF) Sensor name: Sony IMX803 Aperture size: F1.8 Focal length: 24 mm Sensor size: 1/1.28" Pixel size: 2.44 μm	200 MP (OIS, Laser and PDAF) Sensor name: Samsung ISOCELL HP2 Aperture size: F1.7 Focal length: 24 mm Sensor size: 1/1.3" Pixel size: 0.6 μm
Second camera
12 MP (Ultra-wide, PDAF) Aperture size: F2.2 Focal Length: 13 mm Sensor size: 1/2.55" Pixel size: 1.4 μm	12 MP (Ultra-wide) Sensor name: Sony IMX633 Aperture size: F2.2 Focal Length: 13 mm Pixel size: 1.4 μm	50 MP (Ultra-wide, PDAF) Sensor name: Samsung JN3 Aperture size: F1.9 Pixel size: 0.7 μm
Third camera
10 MP (Telephoto, OIS, PDAF) Optical zoom: 3.0x Aperture size: F2.4 Focal Length: 70 mm Sensor size: 1/3.2" Pixel size: 1.22 μm	12 MP (Telephoto, Sensor-shift OIS, PDAF) Sensor name: Sony IMX913 Optical zoom: 5.0x Aperture size: F2.8 Focal Length: 120 mm Sensor size: 1/3.06" Pixel size: 1.12 μm	10 MP (Telephoto, OIS, PDAF) Sensor name: Sony IMX754 Optical zoom: 3.0x Aperture size: F2.4 Focal Length: 67 mm Sensor size: 1/3.52" Pixel size: 1.12 μm
Fourth camera
10 MP (Telephoto, Periscope, OIS, PDAF) Optical zoom: 3.0x Aperture size: F2.4 Focal Length: 70 mm Sensor size: 1/3.2" Pixel size: 1.22 μm		50 MP (Telephoto, Periscope, OIS, PDAF) Sensor name: Sony IMX854 Optical zoom: 5.0x Aperture size: F3.4 Focal Length: 111 mm Sensor size: 1/2.52" Pixel size: 0.7 μm
Flash
LED	Dual LED	LED
Video recording
8K UHD (24 fps), 4K UHD (60 fps), 1080p (240 fps), 720p (960 fps) OIS, HDR, Hyperlapse, Video light, EIS	4K UHD (60 fps), 1080p (240 fps) OIS, HDR, 10-bit HDR, Dolby Vision HDR, ProRes, Cinematic mode	8K UHD (30 fps), 4K UHD (120 fps), 1080p (240 fps) HDR, Continuous autofocus, Picture-taking during video recording
Front
40 MP (PDAF, HDR) Video capture: 4K UHD (60 fps)	12 MP (Time-of-Flight (ToF), Autofocus, HDR) Video capture: 4K UHD (60 fps)	12 MP (PDAF, HDR) Video capture: 4K UHD (60 fps)

PhoneArena Camera Tests

N/A

Overall

N/A

Photo

N/A

Video

154

Overall

157

Photo

152

Video

158

Overall

165

Photo

150

Video

Learn more on our PhoneArena Camera Test Results page

Connectivity & Features

Bluetooth
5.1	5.3	5.4
WLAN
a,b,g,n,ac,Wi-Fi 6,dual-band MIMO, Wi-Fi Direct, Hotspot 802.11 a, b, g, n, ac, ax	a,b,g,n,ac,Wi-Fi 6,Wi-Fi 6E Wi-Fi Direct, Hotspot 802.11 a, b, g, n, ac, ax	a,b,g,n,ac,Wi-Fi 6,Wi-Fi 6E,Wi-Fi 7 Wi-Fi Direct, Hotspot 802.11 a, b, g, n, ac, ax
USB
Type-C, USB 3.2	Type-C, USB 3.2	Type-C, USB 3.2
Sensors
Accelerometer, Gyroscope, Compass, Hall (for flip covers), Barometer, Ambient light sensor, Proximity sensor	Accelerometer, Gyroscope, Compass, Barometer, Ambient light sensor, Proximity sensor	Accelerometer, Gyroscope, Compass, Barometer, Ambient light sensor, Proximity sensor
Hearing aid compatible
M3/T3	M3/T4	M3/T4
Location
GPS, A-GPS, Glonass, Galileo, BeiDou, Cell ID, Wi-Fi positioning	GPS, A-GPS, Glonass, Galileo, BeiDou, QZSS, Cell ID, Wi-Fi positioning, Emergency SOS via satellite (SMS sending/receiving)	GPS, A-GPS, Glonass, Galileo, BeiDou, Cell ID, Wi-Fi positioning
Other
NFC, ANT+	NFC, Ultra Wideband (UWB)	NFC, Ultra Wideband (UWB)

Multimedia

Headphones
No 3.5mm jack	No 3.5mm jack	No 3.5mm jack
Speakers
Earpiece, Multiple speakers	Earpiece, Multiple speakers	Earpiece, Multiple speakers
Features
32-Bit DAC, Dolby Atmos, aptX, Dolby Digital, Dolby Digital Plus	Dolby Atmos	aptX, aptX-HD

Cellular

5G Bands
n2, n5, n12, n25, n41, n66, n71, n77, n260, n261, SA, NSA, Sub-6, mmWave	n1, n2, n3, n5, n7, n8, n12, n14, n20, n25, n28, n29, n30, n38, n40, n41, n48, n66, n70, n71, n77, n78, n79, n258, n260, n261, SA, NSA, mmWave n1, n2, n3, n5, n7, n8, n12, n14, n20, n25, n28, n29, n30, n38, n40, n41, n48, n66, n70, n71, n75, n77, n78, n79, SA, NSA, Sub-6	n1, n2, n5, n7, n25, n28, n41, n66, n71, n77, n78, n257, n258, n260, n261, SA, NSA, Sub-6, mmWave International version - n1, n2, n3, n5, n7, n8, n12, n20, n25, n28, n38, n40, n41, n66, n75, n77, n78, SA, NSA, Sub-6
LTE Bands
1, 2, 3, 4, 5, 7, 8, 12, 13, 14, 18, 19, 20, 25, 26, 28, 30, 66, 71	1, 2, 3, 4, 5, 7, 8, 12, 13, 14, 17, 18, 25, 26, 28, 29, 30, 32, 66, 71 1, 2, 3, 4, 5, 7, 8, 12, 13, 14, 17, 18, 19, 20, 21, 25, 26, 28, 29, 30, 32, 66, 71	1, 2, 3, 4, 5, 7, 8, 12, 13, 14, 18, 19, 20, 25, 26, 28, 29, 30, 66, 71 International version - 1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 18, 19, 20, 25, 26, 28, 32, 66
TDD Bands
38, 39, 40, 41, 46, 48	34, 38, 39, 40, 41, 42, 46, 48 34, 38, 39, 40, 41, 42, 46, 48	38, 39, 40, 41, 48 International version - 38, 39, 40, 41
3G Bands
1, 2, 4, 5, 8	1, 2, 4, 5, 8	1, 2, 4, 5, 8
Data Speed
LTE-A Pro Cat 20 (2000/150 Mbit/s)	LTE-A, HSDPA+ (4G) 42.2 Mbit/s	LTE-A Pro Cat 20 (2000/150 Mbit/s), HSDPA+ (4G) 42.2 Mbit/s
SIM type
Nano SIM	eSIM	Nano SIM, eSIM
HD Voice
	Yes
VoLTE
	Yes

Regulatory Approval

FCC approval
Date approved: Dec 22, 2020 FCC ID value: A3LSMG998U	Date approved: Sep 12, 2023 FCC ID value: BCG-E8439A	Date approved: Nov 26, 2024 FCC ID value: A3LSMS938U
Measured SAR
Head: 0.77 W/kg Body: 1.02 W/kg Simultaneous Transmission: 1.59 W/kg Wireless Router: 1.16 W/kg Phablet: 3.15 W/kg	Head: 0.95 W/kg Body: 0.95 W/kg Simultaneous Transmission: 0.95 W/kg	Head: 1.26 W/kg Body: 0.64 W/kg Simultaneous Transmission: 1.19 W/kg

Alternative variants

with 256GB storage

Memory	256GB
Colors	Phantom black
Prices (MSRP)	$1250

With 512GB internal storage

Memory	512GB
Prices (MSRP)	$1399

With 512GB internal storage

Memory	512GB
Prices (MSRP)	$1420

with 512GB storage

Memory	16GB/512GB
Colors	Phantom black
Prices (MSRP)	$1380

With 1TB internal storage

Memory	1024GB
Prices (MSRP)	$1599

With 1TB internal storage

Memory	1024GB
Prices (MSRP)	$1660

for Europe

System chip	Samsung Exynos 2100 (5 nm)
Processor	Octa-core 1x2.91GHz Cortex-X1 3x2.81G​Hz Cortex-A78 4x2.2G​Hz Cortex-A55
GPU	Mali G78 MP14
Weight	8.01 oz / 227.0 g
5G Bands	SA, NSA, Sub-6
FCC approval	Date approved: Dec 22, 2020 FCC ID value: A3LSMG998B
Measured SAR	Head: 0.16 W/kg Body: 0.72 W/kg Simultaneous Transmission: 1.59 W/kg Wireless Router: 1.34 W/kg Phablet: 3.86 W/kg

International

5G Bands	n1, n2, n3, n5, n7, n8, n12, n14, n20, n25, n28, n29, n30, n38, n40, n41, n48, n66, n70, n71, n75, n77, n78, n79, SA, NSA, Sub-6
LTE Bands	1, 2, 3, 4, 5, 7, 8, 12, 13, 14, 17, 18, 19, 20, 21, 25, 26, 28, 29, 30, 32, 66, 71
TDD Bands	34, 38, 39, 40, 41, 42, 46, 48

International

5G Bands	n1, n2, n3, n5, n7, n8, n12, n20, n25, n28, n38, n40, n41, n66, n75, n77, n78, SA, NSA, Sub-6
LTE Bands	1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 18, 19, 20, 25, 26, 28, 32, 66
TDD Bands	38, 39, 40, 41
SIM type	Dual Nano SIM + eSIM

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