Screen size
Galaxy J7 Duo5.5"
Galaxy S25Winner: 6.2"+11%
Quick verdict
Galaxy S25 leads the measured specs 21-2.
Measured wins
Galaxy J7 Duo
2
spec wins
Ties
0
equal specs
Galaxy S25
21
spec wins
Overall winner
Screen size
Technology
Galaxy J7 Duo
GSM / HSPA / LTE
Galaxy S25
GSM / CDMA / HSPA / EVDO / LTE / 5G
2G bands
Galaxy J7 Duo
GSM 850 / 900 / 1800 / 1900
Galaxy S25
GSM 850 / 900 / 1800 / 1900 , CDMA 800 / 1900 & TD-SCDMA
3G bands
Galaxy J7 Duo
HSDPA 850 / 900 / 1900 / 2100 - International, HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100 - USA
Galaxy S25
HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100 , CDMA2000 1xEV-DO
4G bands
Galaxy J7 Duo
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
1, 3, 5, 7, 8, 20, 38, 40, 41 - International, 1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 28, 38, 40, 41, 66 - USA
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
Speed
Galaxy J7 Duo
HSPA 42.2/5.76 Mbps, LTE Cat4 150/50 Mbps
Galaxy S25
HSPA, LTE (up to 7CA), 5G
5G bands
Galaxy J7 Duo
-
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
Announced
Galaxy J7 Duo
2018, April. Released 2018, April
Galaxy S25
2025, January 22
Status
Galaxy J7 Duo
Discontinued
Galaxy S25
Available. Released 2025, February 03
Dimensions
Galaxy J7 Duo
153.5 x 77.2 x 8.2 mm (6.04 x 3.04 x 0.32 in)
Galaxy S25
146.9 x 70.5 x 7.2 mm (5.78 x 2.78 x 0.28 in)
Weight
Galaxy J7 Duo
174 g (6.14 oz)
Galaxy S25
162 g (5.71 oz)
SIM
Galaxy J7 Duo
Single SIM (Micro-SIM) or Dual SIM (Micro-SIM, dual stand-by)
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
Build
Galaxy J7 Duo
-
Galaxy S25
Glass front (Gorilla Glass Victus 2), glass back (Gorilla Glass Victus 2), aluminum frame
Other
Galaxy J7 Duo
-
Galaxy S25
IP68 dust tight and water resistant (immersible up to 1.5m for 30 min) Armor aluminum 2 frame
Type
Galaxy J7 Duo
Super AMOLED
Galaxy S25
Dynamic LTPO AMOLED 2X, 120Hz, HDR10+, 2600 nits (peak)
Size
Galaxy J7 Duo
5.5 inches, 83.4 cm2 (~70.4% screen-to-body ratio)
Galaxy S25
6.2 inches, 94.4 cm2 (~91.1% screen-to-body ratio)
Resolution
Galaxy J7 Duo
720 x 1280 pixels, 16:9 ratio (~267 ppi density)
Galaxy S25
1080 x 2340 pixels, 19.5:9 ratio (~416 ppi density)
Protection
Galaxy J7 Duo
-
Galaxy S25
Corning Gorilla Glass Victus 2, Mohs level 5
OS
Galaxy J7 Duo
Android 8.0 (Oreo), upgradable to Android 9.0 (Pie)
Galaxy S25
Android 15, up to 7 major Android upgrades, One UI 8
Chipset
Galaxy J7 Duo
Exynos 7885 (14 nm)
Galaxy S25
Qualcomm SM8750-AC Snapdragon 8 Elite (3 nm)
CPU
Galaxy J7 Duo
Octa-core (2x2.2 GHz Cortex-A73 & 6x1.6 GHz Cortex-A53)
Galaxy S25
Octa-core (2x4.47 GHz Oryon V2 Phoenix L + 6x3.53 GHz Oryon V2 Phoenix M)
GPU
Galaxy J7 Duo
Mali-G71
Galaxy S25
Adreno 830 (1200 MHz)
Card slot
Galaxy J7 Duo
microSDXC (dedicated slot)
Galaxy S25
No
Internal
Galaxy J7 Duo
32GB 3GB RAM, 32GB 4GB RAM
Galaxy S25
128GB 12GB RAM, 256GB 12GB RAM, 512GB 12GB RAM
Other
Galaxy J7 Duo
eMMC 5.1
Galaxy S25
UFS 4.0
Dual
Galaxy J7 Duo
13 MP, f/1.9, AF Auxiliary lens
Galaxy S25
-
Features
Galaxy J7 Duo
LED flash, panorama, HDR
Galaxy S25
Best Face, LED flash, auto-HDR, panorama
Video
Galaxy J7 Duo
1080p@30fps
Galaxy S25
8K@24/30fps, 4K@30/60fps, 1080p@30/60/120/240fps, 10-bit HDR, HDR10+, stereo sound rec., gyro-EIS
Triple
Galaxy J7 Duo
-
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
Single
Galaxy J7 Duo
8 MP, f/1.9
Galaxy S25
12 MP, f/2.2, 26mm (wide), 1/3.2", 1.12µm, dual pixel PDAF
Features
Galaxy J7 Duo
LED flash
Galaxy S25
HDR, HDR10+
Video
Galaxy J7 Duo
1080p@30fps
Galaxy S25
4K@30/60fps, 1080p@30fps
Loudspeaker
Galaxy J7 Duo
Yes
Galaxy S25
Yes, with stereo speakers
3.5mm jack
Galaxy J7 Duo
Yes
Galaxy S25
No
Other
Galaxy J7 Duo
-
Galaxy S25
High-bitrate audio support
WLAN
Galaxy J7 Duo
Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct
Galaxy S25
Wi-Fi 802.11 a/b/g/n/ac/6e/7, tri-band, Wi-Fi Direct
Bluetooth
Galaxy J7 Duo
4.2, A2DP, LE
Galaxy S25
5.4, A2DP, LE
Positioning
Galaxy J7 Duo
GPS, GLONASS, BDS
Galaxy S25
GPS, GLONASS, BDS, GALILEO, QZSS
NFC
Galaxy J7 Duo
No
Galaxy S25
Yes
Radio
Galaxy J7 Duo
FM radio
Galaxy S25
No
USB
Galaxy J7 Duo
microUSB 2.0
Galaxy S25
USB Type-C 3.2, DisplayPort 1.2, OTG
Sensors
Galaxy J7 Duo
Fingerprint (front-mounted), accelerometer, proximity
Galaxy S25
Fingerprint (under display, ultrasonic), accelerometer, gyro, proximity, compass, barometer
Other
Galaxy J7 Duo
ANT+
Galaxy S25
Samsung DeX, Samsung Wireless DeX (desktop experience support)
Type
Galaxy J7 Duo
Li-Ion 3000 mAh, removable
Galaxy S25
Li-Ion 4000 mAh
Charging
Galaxy J7 Duo
-
Galaxy S25
25W wired, PD3.0, 50% in 30 min 15W wireless (Qi2 Ready) 4.5W reverse wireless
Colors
Galaxy J7 Duo
Black, Gold, Rose Gold, White, Blue
Galaxy S25
Icy Blue, Mint, Navy, Silver Shadow, Pink Gold, Coral Red, Blue Black
Models
Galaxy J7 Duo
SM-J720F, SM-J720F/DS, SM-J720M, SM-J720M/DS
Galaxy S25
SM-S931B, SM-S931B/DS, SM-S931U, SM-S931U1, SM-S931W, SM-S931N, SM-S9310, SM-S931E, SM-S931E/DS
SAR EU
Galaxy J7 Duo
0.54 W/kg (head) 1.40 W/kg (body)
Galaxy S25
1.29 W/kg (head) 1.36 W/kg (body)
Price
Galaxy J7 Duo
About 240 EUR
Galaxy S25
$ 799.99 / C$ 679.99 / £ 429.99 / € 589.90 / ₹ 74,999
SAR
Galaxy J7 Duo
-
Galaxy S25
1.13 W/kg (head) 0.92 W/kg (body)