Screen size
Galaxy S25 Ultra6.9"
Galaxy Z Fold4Winner: 7.6"+9.2%
Quick verdict
Galaxy S25 Ultra leads the measured specs 11-2.
Measured wins
Galaxy S25 Ultra
11
spec wins
Overall winner
Ties
10
equal specs
Galaxy Z Fold4
2
spec wins
Screen size
Technology
Galaxy S25 Ultra
GSM / CDMA / HSPA / EVDO / LTE / 5G
Galaxy Z Fold4
GSM / CDMA / HSPA / EVDO / LTE / 5G
2G bands
Galaxy S25 Ultra
GSM 850 / 900 / 1800 / 1900 , CDMA 800 / 1900 & TD-SCDMA
Galaxy Z Fold4
GSM 850 / 900 / 1800 / 1900 , CDMA 800 / 1900
3G bands
Galaxy S25 Ultra
HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100 , CDMA2000 1xEV-DO
Galaxy Z Fold4
HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100 , CDMA2000 1xEV-DO
4G bands
Galaxy S25 Ultra
Resolution
Refresh rate
equal specsPeak brightness
Pixel density
CPU speed
RAM
equal specsStorage
equal specsMain camera
Front camera
Battery
Wired charging
Weight
Thickness
IP rating
Wi‑Fi
equal specsBluetooth
USB
equal specs5G support
equal specsNFC
equal specs3.5mm jack
equal specsSD card
equal specsStereo speakers
equal specs1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 18, 19, 20, 25, 26, 28, 32, 38, 39, 40, 41, 66 - International, 1, 2, 3, 4, 5, 7, 8, 12, 13, 14, 18, 19, 20, 25, 26, 28, 29, 30, 38, 39, 40, 41, 48, 66, 71 - USA unlocked
Galaxy Z Fold4
1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 18, 19, 20, 25, 26, 28, 32, 38, 39, 40, 41, 66 - International, 1, 2, 3, 4, 5, 7, 8, 12, 13, 14, 18, 19, 20, 25, 26, 28, 29, 30, 38, 39, 40, 41, 46, 48, 66, 71 - USA
5G bands
Galaxy S25 Ultra
1, 2, 3, 5, 7, 8, 12, 20, 25, 26, 28, 38, 40, 41, 66, 75, 77, 78 SA/NSA/Sub6 - International, 1, 2, 5, 7, 25, 28, 41, 66, 71, 77, 78, 257, 258, 260, 261 SA/NSA/Sub6/mmWave - USA unlocked
Galaxy Z Fold4
1, 2, 3, 5, 7, 8, 12, 20, 25, 28, 38, 40, 41, 66, 75, 77, 78 SA/NSA/Sub6 - International, 2, 5, 7, 12, 25, 30, 38, 41, 48, 66, 71, 77, 78, 258, 260, 261 SA/NSA/Sub6/mmWave - USA
Speed
Galaxy S25 Ultra
HSPA, LTE (up to 7CA), 5G
Galaxy Z Fold4
HSPA 42.2/5.76 Mbps, LTE (7CA) Cat20 2000/200 Mbps, 5G
Announced
Galaxy S25 Ultra
2025, January 22
Galaxy Z Fold4
2022, August 10
Status
Galaxy S25 Ultra
Available. Released 2025, February 03
Galaxy Z Fold4
Available. Released 2022, August 25
Dimensions
Galaxy S25 Ultra
162.8 x 77.6 x 8.2 mm (6.41 x 3.06 x 0.32 in)
Galaxy Z Fold4
Unfolded: 155.1 x 130.1 x 6.3 mmFolded: 155.1 x 67.1 x 14.2-15.8 mm
Weight
Galaxy S25 Ultra
218 g (7.69 oz)
Galaxy Z Fold4
263 g (9.28 oz)
Build
Galaxy S25 Ultra
Glass front (Corning Gorilla Armor 2), glass back (Gorilla Glass Victus 2), titanium frame (grade 5)
Galaxy Z Fold4
Glass front (Gorilla Glass Victus+) (folded), plastic front (unfolded), glass back (Gorilla Glass Victus+), aluminum frame
SIM
Galaxy S25 Ultra
· Nano-SIM + Nano-SIM + eSIM + eSIM (max 2 at a time) - INT· Nano-SIM + eSIM + eSIM (max 2 at a time) - USA· Nano-SIM + Nano-SIM - CN
Galaxy Z Fold4
· Nano-SIM + eSIM· Nano-SIM + Nano-SIM + eSIM (max 2 at a time)
Other
Galaxy S25 Ultra
IP68 dust tight and water resistant (immersible up to 1.5m for 30 min) Stylus
Galaxy Z Fold4
IPX8 water resistant (up to 1.5m for 30 min) Armor aluminum frame Stylus support
Type
Galaxy S25 Ultra
Dynamic LTPO AMOLED 2X, 120Hz, HDR10+, 2600 nits (peak)
Galaxy Z Fold4
Foldable Dynamic AMOLED 2X, 120Hz, HDR10+, 1200 nits (peak)
Size
Galaxy S25 Ultra
6.9 inches, 116.9 cm2 (~92.5% screen-to-body ratio)
Galaxy Z Fold4
7.6 inches, 183.2 cm2 (~90.9% screen-to-body ratio)
Resolution
Galaxy S25 Ultra
1440 x 3120 pixels, 19.5:9 ratio (~498 ppi density)
Galaxy Z Fold4
1812 x 2176 pixels (~373 ppi density)
Protection
Galaxy S25 Ultra
Corning Gorilla Armor 2, Mohs level 6
Galaxy Z Fold4
-
Other
Galaxy S25 Ultra
DX anti-reflective coating
Galaxy Z Fold4
Cover display: Dynamic AMOLED 2X, 120Hz, Corning Gorilla Glass Victus+ 6.2 inches, 904 x 2316 pixels, 23.1:9 ratio
OS
Galaxy S25 Ultra
Android 15, up to 7 major Android upgrades, One UI 8
Galaxy Z Fold4
Android 12L, up to 4 major Android upgrades, One UI 6.1.1
Chipset
Galaxy S25 Ultra
Qualcomm SM8750-AC Snapdragon 8 Elite (3 nm)
Galaxy Z Fold4
Qualcomm SM8475 Snapdragon 8+ Gen 1 (4 nm)
CPU
Galaxy S25 Ultra
Octa-core (2x4.47 GHz Oryon V2 Phoenix L + 6x3.53 GHz Oryon V2 Phoenix M)
Galaxy Z Fold4
Octa-core (1x3.19 GHz Cortex-X2 & 3x2.75 GHz Cortex-A710 & 4x1.80 GHz Cortex-A510)
GPU
Galaxy S25 Ultra
Adreno 830 (1200 MHz)
Galaxy Z Fold4
Adreno 730
Card slot
Galaxy S25 Ultra
No
Galaxy Z Fold4
No
Internal
Galaxy S25 Ultra
256GB 12GB RAM, 512GB 12GB RAM, 1TB 12GB RAM, 1TB 16GB RAM
Galaxy Z Fold4
256GB 12GB RAM, 512GB 12GB RAM, 1TB 12GB RAM
Other
Galaxy S25 Ultra
UFS 4.0
Galaxy Z Fold4
UFS 3.1
Quad
Galaxy S25 Ultra
200 MP, f/1.7, 24mm (wide), 1/1.3", 0.6µm, multi-directional PDAF, OIS 10 MP, f/2.4, 67mm (telephoto), 1/3.52", 1.12µm, PDAF, OIS, 3x optical zoom 50 MP, f/3.4, 111mm (periscope telephoto), 1/2.52", 0.7µm, PDAF, OIS, 5x optical zoom 50 MP, f/1.9, 120˚ (ultrawide), 1/2.5", 0.7µm, dual pixel PDAF, Super Steady video
Galaxy Z Fold4
-
Features
Galaxy S25 Ultra
Laser AF, Best Face, LED flash, auto-HDR, panorama
Galaxy Z Fold4
LED flash, HDR, panorama
Video
Galaxy S25 Ultra
8K@24/30fps, 4K@30/60/120fps, 1080p@30/60/120/240fps, 10-bit HDR, HDR10+, stereo sound rec., gyro-EIS
Galaxy Z Fold4
8K@24fps, 4K@60fps, 1080p@60/240fps (gyro-EIS), HDR10+
Triple
Galaxy S25 Ultra
-
Galaxy Z Fold4
50 MP, f/1.8, 23mm (wide), 1/1.56", 1.0µm, dual pixel PDAF, OIS 10 MP, f/2.4, 66mm (telephoto), 1/3.94", 1.0µm, PDAF, OIS, 3x optical zoom 12 MP, f/2.2, 12mm, 123˚ (ultrawide), 1/3.06", 1.12µm
Single
Galaxy S25 Ultra
12 MP, f/2.2, 26mm (wide), 1/3.2", 1.12µm, dual pixel PDAF
Galaxy Z Fold4
4 MP, f/1.8, 26mm (wide), 1/3.0", 2.0µm, under display Cover camera: 10 MP, f/2.2, 24mm (wide), 1/3.0", 1.22µm
Features
Galaxy S25 Ultra
HDR, HDR10+
Galaxy Z Fold4
HDR
Video
Galaxy S25 Ultra
4K@30/60fps, 1080p@30fps
Galaxy Z Fold4
4K@30/60fps, 1080p@30/60fps, gyro-EIS
Loudspeaker
Galaxy S25 Ultra
Yes, with stereo speakers
Galaxy Z Fold4
Yes, with stereo speakers
3.5mm jack
Galaxy S25 Ultra
No
Galaxy Z Fold4
No
Other
Galaxy S25 Ultra
High-bitrate audio support
Galaxy Z Fold4
High-bitrate audio support
WLAN
Galaxy S25 Ultra
Wi-Fi 802.11 a/b/g/n/ac/6e/7, tri-band, Wi-Fi Direct
Galaxy Z Fold4
Wi-Fi 802.11 a/b/g/n/ac/6e, dual-band, Wi-Fi Direct
Bluetooth
Galaxy S25 Ultra
5.4, A2DP, LE
Galaxy Z Fold4
5.2, A2DP, LE, aptX HD
Positioning
Galaxy S25 Ultra
GPS, GLONASS, BDS, GALILEO, QZSS
Galaxy Z Fold4
GPS, GLONASS, GALILEO, BDS
NFC
Galaxy S25 Ultra
Yes
Galaxy Z Fold4
Yes
Radio
Galaxy S25 Ultra
No
Galaxy Z Fold4
No
USB
Galaxy S25 Ultra
USB Type-C 3.2, DisplayPort 1.2, OTG
Galaxy Z Fold4
USB Type-C 3.2, OTG
Sensors
Galaxy S25 Ultra
Fingerprint (under display, ultrasonic), accelerometer, gyro, proximity, compass, barometer
Galaxy Z Fold4
Fingerprint (side-mounted), accelerometer, gyro, proximity, compass, barometer
Other
Galaxy S25 Ultra
Samsung DeX, Samsung Wireless DeX (desktop experience support) Ultra Wideband (UWB) support
Galaxy Z Fold4
Samsung DeX (desktop experience support) Ultra Wideband (UWB) support
Type
Galaxy S25 Ultra
Li-Ion 5000 mAh
Galaxy Z Fold4
Li-Po 4400 mAh
Charging
Galaxy S25 Ultra
45W wired, PD3.0, 65% in 30 min 15W wireless (Qi2 Ready) 4.5W reverse wireless
Galaxy Z Fold4
25W wired, 50% in 30 min 15W wireless 4.5W reverse wireless
Colors
Galaxy S25 Ultra
Titanium Silver Blue, Titanium Black, Titanium White Silver, Titanium Gray, Titanium Jade Green, Titanium Jet Black, Titanium Pink Gold
Galaxy Z Fold4
Graygreen, Phantom Black, Beige, Burgundy
Models
Galaxy S25 Ultra
SM-S938B, SM-S938B/DS, SM-S938U, SM-S938U1, SM-S938W, SM-S938N, SM-S9380, SM-S938E, SM-S938E/DS
Galaxy Z Fold4
SM-F936B, SM-F936B/DS, SM-F936U, SM-F936U1, SM-F936N, SM-F936W, SM-F9360
SAR
Galaxy S25 Ultra
1.26 W/kg (head) 0.64 W/kg (body)
Galaxy Z Fold4
0.96 W/kg (head) 0.92 W/kg (body)
SAR EU
Galaxy S25 Ultra
1.25 W/kg (head) 1.42 W/kg (body)
Galaxy Z Fold4
1.30 W/kg (head) 1.51 W/kg (body)
Price
Galaxy S25 Ultra
$ 1,299.99 / C$ 1,229.75 / £ 699.00 / € 846.41 / ₹ 112,990
Galaxy Z Fold4
$ 398.91 / C$ 699.99 / £ 482.20 / € 536.74