Samsung Galaxy S6 vs Samsung Galaxy S25 Ultra
Short Description
Samsung Galaxy S6
Screen size: 5.1" / Resolution: 1440 x 2560 px / Main camera: 16 MP / Front camera: 5MP / RAM: 3GB / Battery power: 2550 mAh / Internal storage: 32GB, 64GB, 128GB / SIM cards: 1 SIM
Samsung Galaxy S25 Ultra
Screen size: 6.9" / Resolution: 1440 x 3120 px / Main camera: 200 MP & 50 MP & 10 MP & 10 MP / Front camera: 12MP / RAM: 12GB / Battery power: 5000 mAh / Has 5G support: ✔ / Internal storage: 1000GB / SIM cards: 2 SIM, 2 eSIM
Key Differences
Samsung Galaxy S6
Samsung Galaxy S25 Ultra
How is Samsung Galaxy S6 better than Samsung Galaxy S25 Ultra?
Lighter: 138 g (4.87 ounces) vs 218 g (7.69 ounces)
Narrower: 70.5 mm (2.78 inches) vs 77.6 mm (3.06 inches)
Shorter: 143.4 mm (5.65 inches) vs 162.8 mm (6.41 inches)
Samsung Galaxy S6
Samsung Galaxy S25 Ultra
How is Samsung Galaxy S25 Ultra better than Samsung Galaxy S6?
Bigger battery capacity: 5000 mAh vs 2550 mAh
Faster CPU speed: 2 x 4.32 GHz & 6 x 3.53 GHz vs 4 x 2.1 GHz & 4 x 1.5 GHz
More RAM memory capacity in max option: 12GB vs 3GB
More internal storage in max option: 1000GB vs 32GB, 64GB, 128GB
More megapixels main camera: 200 MP & 50 MP & 10 MP & 10 MP vs 16 MP
More megapixels front camera: 12MP vs 5MP
Has a larger display diagonal: 6.9" vs 5.1"
Better display resolution: 1440 x 3120 px vs 1440 x 2560 px
Higher charging speed: 45W vs 15W
More color options: Titanium Silver Blue, Titanium Black, Titanium White Silver, Titanium Gray, Titanium Jade Green, Titanium Jet Black, Titanium Pink Gold vs White Pearl, Black Sapphire, Gold Platinum, Blue Topaz
The phone is 9 years and 9 months newer
Size Comparison
Samsung Galaxy S6
Samsung Galaxy S25 Ultra
Height
143.4 mm
(5.65 inches)
Width
70.5 mm
(2.78 inches)
Thickness
6.8 mm
(0.27 inches)
Screen size
5.1"
Weight
138 g
(4.87 ounces)
5.1"
6.9"
Height
162.8 mm
(6.41 inches)
Width
77.6 mm
(3.06 inches)
Thickness
8.2 mm
(0.32 inches)
Screen size
6.9"
Weight
218 g
(7.69 ounces)
Height
143.4 mm
(5.65 inches)
Width
70.5 mm
(2.78 inches)
Thickness
6.8 mm
(0.27 inches)
Screen size
5.1"
Weight
138 g
(4.87 ounces)
Height
162.8 mm
(6.41 inches)
Width
77.6 mm
(3.06 inches)
Thickness
8.2 mm
(0.32 inches)
Screen size
6.9"
Weight
218 g
(7.69 ounces)
3D comparison
Samsung Galaxy S6
Samsung Galaxy S25 Ultra
Samsung Galaxy S6
Samsung Galaxy S25 Ultra
Expert Score
Score 4.3
Score 4.0
Samsung Galaxy S6
Samsung Galaxy S25 Ultra
Samsung Galaxy S6
Samsung Galaxy S25 Ultra
Score 4.3
Score 4.0
PhoneArena
Samsung Galaxy S6
Samsung Galaxy S25 Ultra
Vote for Your option
Samsung Galaxy S6
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Samsung Galaxy S25 Ultra
Technical Specifications
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Specs
Samsung Galaxy S6
Samsung Galaxy S25 Ultra
Design
Weight
138 g (4.87 ounces)
218 g (7.69 ounces)
Thickness
6.8 mm (0.27 inches)
8.2 mm (0.32 inches)
Width
70.5 mm (2.78 inches)
77.6 mm (3.06 inches)
Height
143.4 mm (5.65 inches)
162.8 mm (6.41 inches)
Ingress Protection (IP) rating
-
IP68
Waterproof depth rating
-
1.5 m
Volume
-
103.59 cm³
Is dustproof and water-resistant
-
Water resistant
Color options
White Pearl, Black Sapphire, Gold Platinum, Blue Topaz
Titanium Silver Blue, Titanium Black, Titanium White Silver, Titanium Gray, Titanium Jade Green, Titanium Jet Black, Titanium Pink Gold
Lowest potential operating temperature
-
0 °C
Maximum operating temperature
-
35 °C
Display
Screen size
5.1"
6.9"
Display type
OLED/AMOLED
OLED/AMOLED
Pixel density
577 ppi
498 ppi
Resolution
1440 x 2560 px
1440 x 3120 px
Refresh rate
60Hz
120Hz
Touch sampling rate
-
240Hz
Has branded damage-resistant glass
✔
✔
Gorilla Glass version
-
Gorilla Glass Armor 2
Supports HDR10
-
✔
Supports HDR10+
-
✔
Always-On Display
-
✔
Contrast ratio
-
3000000:1
Has a touch screen
✔
✔
Performance
Internal storage
32GB, 64GB, 128GB
1000GB
RAM
3GB
12GB
Android version
Android 8 Oreo
Android 15
CPU speed
4 x 2.1 GHz & 4 x 1.5 GHz
2 x 4.32 GHz & 6 x 3.53 GHz
GPU clock speed
700 MHz
1100 MHz
Has integrated LTE
✔
✔
RAM speed
1552 MHz
5300 MHz
Semiconductor size
14 nm
3 nm
Supports 64-bit
✔
✔
DirectX version
DirectX 11
DirectX 12
Has integrated graphics
✔
✔
OpenGL ES version
3.2
-
Uses big.LITTLE technology
✔
✔
CPU threads
8 threads
8 threads
Uses HMP
✔
✔
Has TrustZone
✔
✔
Maximum memory bandwidth
-
10.68 GB/s
OpenCL version
1.2
3
L2 cache
2 MB
12 MB
DDR memory version
-
5
Maximum memory amount
-
24GB
Uses multithreading
-
✔
Shading units
-
1536
Release date
2015
2025
Has NX bit
✔
-
L1 cache
48 KB
-
Supports ecc memory
-
✔
Memory channels
-
2
Bits executed at a time
128
-
VFP version
4
-
Cameras
Main camera
16 MP
200 MP & 50 MP & 10 MP & 10 MP
Front camera
5MP
12MP
Has built-in optical image stabilization
✔
✔
Video recording (main camera)
2160 x 30 fps
4320 x 30 fps
Wide aperture (main camera)
f/1.9
f/1.7 & f/3.4 & f/1.9 & f/2.4
Has a dual-tone LED flash
-
✔
Has a BSI sensor
✔
✔
Has continuous autofocus when recording movies
✔
✔
Has phase-detection autofocus for photos
✔
✔
Supports slow-motion video recording
✔
✔
Has a built-in HDR mode
✔
✔
Has a flash
✔
✔
Has manual exposure
✔
✔
Has a dual-lens (or multi-lens) main camera
-
✔
Optical zoom
0x
5x
Number of flash LEDs
1
2
Has a CMOS sensor
✔
✔
Has manual ISO
✔
✔
Has a serial shot mode
✔
✔
Has manual focus
-
✔
Has a front camera
✔
✔
Has manual white balance
✔
✔
Has laser autofocus
-
✔
Shoots raw
✔
✔
Has touch autofocus
✔
✔
Has manual shutter speed
-
✔
Can create panoramas in-camera
✔
✔
Wide aperture (front camera)
-
f/2.2
Has timelapse function
-
✔
Pixel size (main camera)
-
0.6 µm & 0.7 µm & 0.7 µm & 1.12 µm
Supports HDR10 recording
-
✔
Operating system
Has clipboard warnings
-
✔
Has location privacy options
-
✔
Has camera/microphone privacy options
-
✔
Has theme customization
✔
✔
Can play games while they download
-
✔
Has dark mode
-
✔
Has Wi-Fi password sharing
-
✔
Has battery health check
-
✔
Has an extra dim mode
-
✔
Has focus modes
-
✔
Has dynamic theming
-
✔
Can offload apps
-
✔
Has customizable notifications
✔
✔
Has scrolling screenshots
-
✔
Supports split screen
✔
✔
Supports instant markup
✔
✔
Supports PiP and PaP
✔
✔
More languages supported
-
125
Can be used as a PC
-
✔
Has sharing intents
✔
✔
Has a child lock
✔
✔
Supports widgets
-
✔
Is free and open source
✔
✔
Tracks the current position of a mobile device
✔
✔
Is a multi-user system
✔
✔
Supports widgets
✔
-
More languages supported
125
-
Has offline voice recognition
✔
✔
The browser has word wrap
✔
✔
Has voice commands
✔
✔
Battery
Battery power
2550 mAh
5000 mAh
Has wireless charging
✔
✔
Supports fast charging
✔
✔
Charging speed
15W
45W
Wireless charging speed
5W
25W
Has reverse wireless charging
-
✔
Reverse wireless charging speed
-
4.5W
Has an ultra power-saving mode
-
✔
Has a battery level indicator
✔
✔
Has a rechargeable battery
✔
✔
Audio
Has stereo speakers
-
✔
Has LDAC
-
✔
Has aptX HD
-
✔
Has aptX Lossless
-
✔
Has aptX
✔
-
Number of microphones
2
3
Has a socket for a 3.5 mm audio jack
✔
-
Features
Has 5G support
-
✔
Wi-Fi version
Wi-Fi 5 (802.11ac), Wi-Fi 4 (802.11n)
Wi-Fi 4 (802.11n), Wi-Fi 6 (802.11ax), Wi-Fi 5 (802.11ac), Wi-Fi 7 (802.11be), Wi-Fi 6E (802.11ax)
Download speed
450 MBits/s
10000 MBits/s
Upload speed
150 MBits/s
3500 MBits/s
Has USB Type-C
-
✔
USB version
2
3.2
Has NFC
✔
✔
SIM cards
1 SIM
2 SIM, 2 eSIM
Has a fingerprint scanner
✔
✔
Bluetooth version
4.1
5.4
Has a gyroscope
✔
✔
Has GPS
✔
✔
Has a compass
✔
✔
Supports Wi-Fi
✔
✔
Has a cellular module
✔
✔
Has a barometer
-
✔
Stylus included
-
✔
Supports Galileo
-
✔
Has an infrared sensor
✔
-
Has an accelerometer
✔
✔
Supports ant+
✔
✔
Is DLNA-certified
✔
-
Has a heart rate monitor
✔
-
Disclaimer! NFC, GSM network support, and some other specs can be different depending on the country.
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Samsung Galaxy S6
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Samsung Galaxy S25 Ultra
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