Screen size
Galaxy S25Winner: 6.2"+63%
Z6202.3"
Quick verdict
Galaxy S25 leads the measured specs 20-2.
Measured wins
Galaxy S25
20
spec wins
Overall winner
Ties
1
equal specs
Z620
2
spec wins
Screen size
Technology
Galaxy S25
GSM / CDMA / HSPA / EVDO / LTE / 5G
Z620
GSM / HSPA
2G bands
Galaxy S25
GSM 850 / 900 / 1800 / 1900 , CDMA 800 / 1900 & TD-SCDMA
Z620
GSM 900 / 1800 / 1900
3G bands
Galaxy S25
HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100 , CDMA2000 1xEV-DO
Z620
HSDPA 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
equal specsSD card
Stereo speakers
Z620
-
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
Z620
-
Speed
Galaxy S25
HSPA, LTE (up to 7CA), 5G
Z620
HSPA
Announced
Galaxy S25
2025, January 22
Z620
2006, August
Status
Galaxy S25
Available. Released 2025, February 03
Z620
Discontinued
Dimensions
Galaxy S25
146.9 x 70.5 x 7.2 mm (5.78 x 2.78 x 0.28 in)
Z620
103 x 54 x 11.8 mm (4.06 x 2.13 x 0.46 in)
Weight
Galaxy S25
162 g (5.71 oz)
Z620
96.5 g (3.39 oz)
Build
Galaxy S25
Glass front (Gorilla Glass Victus 2), glass back (Gorilla Glass Victus 2), aluminum frame
Z620
-
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
Z620
Mini-SIM
Other
Galaxy S25
IP68 dust tight and water resistant (immersible up to 1.5m for 30 min) Armor aluminum 2 frame
Z620
-
Type
Galaxy S25
Dynamic LTPO AMOLED 2X, 120Hz, HDR10+, 2600 nits (peak)
Z620
TFT, 256K colors
Size
Galaxy S25
6.2 inches, 94.4 cm2 (~91.1% screen-to-body ratio)
Z620
2.3 inches, 16.4 cm2 (~29.5% screen-to-body ratio)
Resolution
Galaxy S25
1080 x 2340 pixels, 19.5:9 ratio (~416 ppi density)
Z620
240 x 320 pixels, 4:3 ratio (~174 ppi density)
Protection
Galaxy S25
Corning Gorilla Glass Victus 2, Mohs level 5
Z620
-
Other
Galaxy S25
-
Z620
Second external OLED, 16 gray display (96 x 16 pixels)
OS
Galaxy S25
Android 15, up to 7 major Android upgrades, One UI 8
Z620
-
Chipset
Galaxy S25
Qualcomm SM8750-AC Snapdragon 8 Elite (3 nm)
Z620
-
CPU
Galaxy S25
Octa-core (2x4.47 GHz Oryon V2 Phoenix L + 6x3.53 GHz Oryon V2 Phoenix M)
Z620
-
GPU
Galaxy S25
Adreno 830 (1200 MHz)
Z620
-
Card slot
Galaxy S25
No
Z620
microSD (dedicated slot)
Internal
Galaxy S25
128GB 12GB RAM, 256GB 12GB RAM, 512GB 12GB RAM
Z620
20MB
Other
Galaxy S25
UFS 4.0
Z620
-
Phonebook
Galaxy S25
-
Z620
1000 entries, Photocall
Call records
Galaxy S25
-
Z620
20 dialed, 20 received, 20 missed calls
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
Z620
-
Features
Galaxy S25
Best Face, LED flash, auto-HDR, panorama
Z620
rotating lens
Video
Galaxy S25
8K@24/30fps, 4K@30/60fps, 1080p@30/60/120/240fps, 10-bit HDR, HDR10+, stereo sound rec., gyro-EIS
Z620
320p
Single
Galaxy S25
-
Z620
2 MP
Single
Galaxy S25
12 MP, f/2.2, 26mm (wide), 1/3.2", 1.12µm, dual pixel PDAF
Z620
-
Features
Galaxy S25
HDR, HDR10+
Z620
-
Video
Galaxy S25
4K@30/60fps, 1080p@30fps
Z620
-
Other
Galaxy S25
-
Z620
No
Loudspeaker
Galaxy S25
Yes, with stereo speakers
Z620
Yes
3.5mm jack
Galaxy S25
No
Z620
No
Other
Galaxy S25
High-bitrate audio support
Z620
-
Alert types
Galaxy S25
-
Z620
Vibration; Downloadable polyphonic, MP3 ringtones
WLAN
Galaxy S25
Wi-Fi 802.11 a/b/g/n/ac/6e/7, tri-band, Wi-Fi Direct
Z620
No
Bluetooth
Galaxy S25
5.4, A2DP, LE
Z620
1.2, A2DP
Positioning
Galaxy S25
GPS, GLONASS, BDS, GALILEO, QZSS
Z620
No
NFC
Galaxy S25
Yes
Z620
-
Radio
Galaxy S25
No
Z620
No
USB
Galaxy S25
USB Type-C 3.2, DisplayPort 1.2, OTG
Z620
2.0
Sensors
Galaxy S25
Fingerprint (under display, ultrasonic), accelerometer, gyro, proximity, compass, barometer
Z620
Other
Galaxy S25
Samsung DeX, Samsung Wireless DeX (desktop experience support)
Z620
MP3/AAC/AAC+/e-AAC+ player Predictive text input Document viewer (Word, Excel, PowerPoint, PDF) Organizer Voice memo
Messaging
Galaxy S25
-
Z620
SMS, EMS, MMS, Email
Browser
Galaxy S25
-
Z620
WAP 2.0/xHTML
Games
Galaxy S25
-
Z620
Yes + downloadable
Java
Galaxy S25
-
Z620
Yes, MIDP 2.0
Type
Galaxy S25
Li-Ion 4000 mAh
Z620
Removable Li-Ion 900 mAh battery
Charging
Galaxy S25
25W wired, PD3.0, 50% in 30 min 15W wireless (Qi2 Ready) 4.5W reverse wireless
Z620
-
Stand-by
Galaxy S25
-
Z620
Up to 250 h
Talk time
Galaxy S25
-
Z620
Up to 5 h
Colors
Galaxy S25
Icy Blue, Mint, Navy, Silver Shadow, Pink Gold, Coral Red, Blue Black
Z620
Black/Pink, Silver, Blue
Models
Galaxy S25
SM-S931B, SM-S931B/DS, SM-S931U, SM-S931U1, SM-S931W, SM-S931N, SM-S9310, SM-S931E, SM-S931E/DS
Z620
-
SAR
Galaxy S25
1.13 W/kg (head) 0.92 W/kg (body)
Z620
0.30 W/kg (head) 0.38 W/kg (body)
SAR EU
Galaxy S25
1.29 W/kg (head) 1.36 W/kg (body)
Z620
0.33 W/kg (head)
Price
Galaxy S25
$ 799.99 / C$ 679.99 / £ 429.99 / € 589.90 / ₹ 74,999
Z620
-