Screen size
Galaxy S25Winner: 6.2"+27%
Z44.5"
Quick verdict
Galaxy S25 leads the measured specs 20-3.
Measured wins
Galaxy S25
20
spec wins
Overall winner
Ties
0
equal specs
Z4
3
spec wins
Screen size
Technology
Galaxy S25
GSM / CDMA / HSPA / EVDO / LTE / 5G
Z4
GSM / HSPA / LTE
2G bands
Galaxy S25
GSM 850 / 900 / 1800 / 1900 , CDMA 800 / 1900 & TD-SCDMA
Z4
GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 (dual-SIM model only)
3G bands
Galaxy S25
HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100 , CDMA2000 1xEV-DO
Z4
HSDPA 900 / 2100
4G bands
Galaxy S25
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, 48, 66, 71 - USA unlocked
Resolution
Refresh rate
Peak brightness
Pixel density
CPU speed
RAM
Storage
Main camera
Front camera
Battery
Wired charging
Weight
Thickness
IP rating
Wi‑Fi
Bluetooth
USB
5G support
NFC
3.5mm jack
SD card
Stereo speakers
Z4
LTE
5G bands
Galaxy S25
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
Z4
-
Speed
Galaxy S25
HSPA, LTE (up to 7CA), 5G
Z4
HSPA 42.2/5.76 Mbps, LTE Cat4 150/50 Mbps
Announced
Galaxy S25
2025, January 22
Z4
2017, May. Released 2017, June
Status
Galaxy S25
Available. Released 2025, February 03
Z4
Discontinued
Dimensions
Galaxy S25
146.9 x 70.5 x 7.2 mm (5.78 x 2.78 x 0.28 in)
Z4
132.9 x 69.2 x 10.3 mm (5.23 x 2.72 x 0.41 in)
Weight
Galaxy S25
162 g (5.71 oz)
Z4
143 g (5.04 oz)
Build
Galaxy S25
Glass front (Gorilla Glass Victus 2), glass back (Gorilla Glass Victus 2), aluminum frame
Z4
-
SIM
Galaxy S25
· 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
Z4
Single SIM (Micro-SIM) or Hybrid Dual SIM (Micro-SIM, dual stand-by)
Other
Galaxy S25
IP68 dust tight and water resistant (immersible up to 1.5m for 30 min) Armor aluminum 2 frame
Z4
-
Type
Galaxy S25
Dynamic LTPO AMOLED 2X, 120Hz, HDR10+, 2600 nits (peak)
Z4
IPS LCD
Size
Galaxy S25
6.2 inches, 94.4 cm2 (~91.1% screen-to-body ratio)
Z4
4.5 inches, 57.6 cm2 (~62.7% screen-to-body ratio)
Resolution
Galaxy S25
1080 x 2340 pixels, 19.5:9 ratio (~416 ppi density)
Z4
480 x 800 pixels, 5:3 ratio (~207 ppi density)
Protection
Galaxy S25
Corning Gorilla Glass Victus 2, Mohs level 5
Z4
-
OS
Galaxy S25
Android 15, up to 7 major Android upgrades, One UI 8
Z4
Tizen 3.0
Chipset
Galaxy S25
Qualcomm SM8750-AC Snapdragon 8 Elite (3 nm)
Z4
-
CPU
Galaxy S25
Octa-core (2x4.47 GHz Oryon V2 Phoenix L + 6x3.53 GHz Oryon V2 Phoenix M)
Z4
Quad-core 1.5 GHz
GPU
Galaxy S25
Adreno 830 (1200 MHz)
Z4
-
Card slot
Galaxy S25
No
Z4
microSDXC (uses shared SIM slot)
Internal
Galaxy S25
128GB 12GB RAM, 256GB 12GB RAM, 512GB 12GB RAM
Z4
8GB 1GB RAM
Other
Galaxy S25
UFS 4.0
Z4
-
Triple
Galaxy S25
50 MP, f/1.8, 24mm (wide), 1/1.56", 1.0µm, dual pixel PDAF, OIS 10 MP, f/2.4, 67mm (telephoto), 1/3.94", 1.0µm, PDAF, OIS, 3x optical zoom 12 MP, f/2.2, 13mm, 120˚ (ultrawide), 1/2.55" 1.4µm, Super Steady video
Z4
-
Features
Galaxy S25
Best Face, LED flash, auto-HDR, panorama
Z4
Dual-LED flash, panorama, HDR
Video
Galaxy S25
8K@24/30fps, 4K@30/60fps, 1080p@30/60/120/240fps, 10-bit HDR, HDR10+, stereo sound rec., gyro-EIS
Z4
720p@30fps
Single
Galaxy S25
-
Z4
5 MP, f/2.2
Single
Galaxy S25
12 MP, f/2.2, 26mm (wide), 1/3.2", 1.12µm, dual pixel PDAF
Z4
5 MP, f/2.2
Features
Galaxy S25
HDR, HDR10+
Z4
LED flash
Video
Galaxy S25
4K@30/60fps, 1080p@30fps
Z4
Loudspeaker
Galaxy S25
Yes, with stereo speakers
Z4
Yes
3.5mm jack
Galaxy S25
No
Z4
Yes
Other
Galaxy S25
High-bitrate audio support
Z4
-
WLAN
Galaxy S25
Wi-Fi 802.11 a/b/g/n/ac/6e/7, tri-band, Wi-Fi Direct
Z4
Wi-Fi 802.11 b/g/n, Wi-Fi Direct
Bluetooth
Galaxy S25
5.4, A2DP, LE
Z4
4.0, A2DP, LE
Positioning
Galaxy S25
GPS, GLONASS, BDS, GALILEO, QZSS
Z4
GPS, GLONASS
NFC
Galaxy S25
Yes
Z4
No
Radio
Galaxy S25
No
Z4
FM radio
USB
Galaxy S25
USB Type-C 3.2, DisplayPort 1.2, OTG
Z4
microUSB 2.0, OTG
Sensors
Galaxy S25
Fingerprint (under display, ultrasonic), accelerometer, gyro, proximity, compass, barometer
Z4
Accelerometer, proximity
Other
Galaxy S25
Samsung DeX, Samsung Wireless DeX (desktop experience support)
Z4
-
Type
Galaxy S25
Li-Ion 4000 mAh
Z4
Li-Ion 2050 mAh, removable
Charging
Galaxy S25
25W wired, PD3.0, 50% in 30 min 15W wireless (Qi2 Ready) 4.5W reverse wireless
Z4
-
Colors
Galaxy S25
Icy Blue, Mint, Navy, Silver Shadow, Pink Gold, Coral Red, Blue Black
Z4
Black, Gold
Models
Galaxy S25
SM-S931B, SM-S931B/DS, SM-S931U, SM-S931U1, SM-S931W, SM-S931N, SM-S9310, SM-S931E, SM-S931E/DS
Z4
SM-Z400F, SM-Z400Y
SAR
Galaxy S25
1.13 W/kg (head) 0.92 W/kg (body)
Z4
-
SAR EU
Galaxy S25
1.29 W/kg (head) 1.36 W/kg (body)
Z4
-
Price
Galaxy S25
$ 799.99 / C$ 679.99 / £ 429.99 / € 589.90 / ₹ 74,999
Z4
About 80 EUR