Samsung Galaxy S25 (SM-S931B/DS 128GB) vs Samsung Galaxy J7 Duo (SM-J720F/DS 32GB/3GB)
Side by side comparison between Samsung Galaxy S25 vs Samsung Galaxy J7 Duo phones, differences, pros, cons and full specifications. What's the better?
,
6.2"
AMOLED
AMOLED
1080x2340
50
MP
MP
12mp
12GB
RAM
RAM
Octa-core
4000
mAh
mAh
(Non removable)
vs
5.5"
AMOLED
AMOLED
720x1280
13
MP
MP
8mp
3GB
RAM
RAM
Octa-core
3000
mAh
mAh
(Removable)
What's the better phone? Samsung Galaxy S25 (SM-S931B/DS 128GB)
The phonemore's choice is much more technical than personal. Therefore, you shouldn't only consider this. Our goal is to help you, but what's important to us may not be important to you. You decide which one is the best! Comment!
15 Common items in both devices |
LTPO AMOLED / Super AMOLED |
16 million |
PDAF: phase detection autofocus on both cameras / Autofocus |
Capacitive |
Multitouch |
Accelerometer |
Face unlock 2D |
+8 specs and more in the table below |
Check the comparison table below for more items that are not evaluated in comparison score above.
Highlight differences Clear highlight📱 Model features | ||
Galaxy S25 (SM-S931B/DS 128GB) | Galaxy J7 Duo (SM-J720F/DS 32GB/3GB) | |
Model | Galaxy S25 (SM-S931B/DS 128GB) | Galaxy J7 Duo (SM-J720F/DS 32GB/3GB) |
Other model names | Galaxy S25 SM-S931B/Dual-SIM | Galaxy J7 Duo (32GB + 3GB RAM) Dual-Sim, Samsung J720 |
Country or region available | ![]() (Global, International) | ![]() ![]() ![]() ![]() ![]() (Europe), (Global, International), Singapore, Thailand, Vietnam |
Brand | Samsung | Samsung |
Release date | 2/3/2025, Announced: 1/22/2025 | 4/1/2018 |
Depth | 7.2 millimeters (0.28 inches) | 8.2 millimeters (0.32 inches) |
Size (width x height) | 70.5 x 146.9 millimeters (2.78 x 5.78 in) | 77.2 x 153.5 millimeters (3.04 x 6.04 in) |
Weight | 162 grams (5.67 ounces) | 174 grams (6.09 ounces) |
Build, materials | Aluminum frame, glass front/back Back: Gorilla Glass Victus 2 | Plastic body, glass front |
Protection against water and others | IP68 certified: water-resistant up to 1.5 meters for 30min and dust-resistant | Not supported |
📲 Display | ||
Galaxy S25 (SM-S931B/DS 128GB) | Galaxy J7 Duo (SM-J720F/DS 32GB/3GB) | |
Display type | LTPO AMOLED | Super AMOLED |
Screen size | 6.2" inches | 5.5" inches |
Screen-to-body ratio | ~91.1% (screen-to-body ratio) | ~70.4% (screen-to-body ratio) |
Display resolution | 1080x2340 pixels (19.5:9) | 720x1280 pixels (16:9) |
Touchscreen | Capacitive Multitouch 10-points | Capacitive Multitouch |
Pixel density (dot pitch) | 416 PPI | 267 PPI |
Colors | 16 million | 16 million |
Scratch-resistant glass | Gorilla Glass Victus 2 | Gorilla Glass |
Refresh rate | 120Hz | 60Hz |
Display features | 2600nits[peak] HDR10+ Always-On Display | Not supported |
🤖 Operating System | ||
Galaxy S25 (SM-S931B/DS 128GB) | Galaxy J7 Duo (SM-J720F/DS 32GB/3GB) | |
System version | Android 15 | Android 8.0 Oreo |
Firmware update | feature not registered | Android 10 |
User Interface | One UI 7.0 | One UI 2.0 |
⚙️ Processor | ||
Galaxy S25 (SM-S931B/DS 128GB) | Galaxy J7 Duo (SM-J720F/DS 32GB/3GB) | |
Chipset | 64bit: Qualcomm Snapdragon 8 Elite (SM8750-AB) (3nm) | 64bit: Samsung Exynos 7885 (14nm) |
CPU | Octa-core, 2 processors: 2x 4.47GHz Oryon V2 Phoenix L (Dual-core) 6x 3.53GHz Oryon V2 Phoenix M (Hexa-core) | Octa-core, 2 processors: 2x 2.2GHz ARM Cortex-A73 (Dual-core) 6x 1.6GHz ARM Cortex-A53 (Hexa-core) |
GPU graphical controller | Qualcomm Adreno 830 (1100MHz) | ARM Mali-G71 MP2 |
Performance (benchmark) | AnTuTu: 2193701 (v10) Geekbench: 10050 (v6) | AnTuTu: 98104 (v7) |
💽 Memory and storage | ||
Galaxy S25 (SM-S931B/DS 128GB) | Galaxy J7 Duo (SM-J720F/DS 32GB/3GB) | |
RAM memory | 12GB LPDDR5X | 3GB LPDDR4 |
Internal storage | 128GB (96GB available) UFS 4.0 | 32GB (21GB available) eMMC 5.1 |
External storage | Not supported | Until 256GB microSD, microSDXC (dedicated slot) |
📶 Mobile networks | ||
Galaxy S25 (SM-S931B/DS 128GB) | Galaxy J7 Duo (SM-J720F/DS 32GB/3GB) | |
Dual-SIM | Dual-SIM Standby - Call active on one sim card | Dual-SIM Standby - Call active on one sim card (dedicated slot) |
SIM card | 2 slots (Dual-SIM) nano-SIM (4FF) + e-SIM | 2 slots (Dual-SIM) micro-SIM (3FF) |
Maximum Download / Upload | 5000/1024 Mbps | 150/50 Mbps |
Network technology | 2G, 3G, 4G, 5G | 2G, 3G, 4G |
Frequency, bands | Expand band details Collapse details | |
GSM MHz band | Quad-Band 850/900/1800/1900 | Quad-Band 850/900/1800/1900 |
Primary 2G network | CDMA 800/1900, GSM 850/900/1800/1900 | GSM 850/900/1800/1900 |
Primary 3G network | CDMA2000 1xEV-DO TD-SCDMA 1900/2000 UMTS 850/900/1700/1900/2100 | UMTS 850/900/1900/2100 |
Primary 4G network | LTE Cat24 (1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 18 , 19, 20, 25, 26, 28, 66) TD-LTE (38, 39, 40, 41) VoLTE | LTE Cat4 (1, 3, 5, 7, 8, 20) TD-LTE (38, 40, 41) |
Primary 5G network | SA/NSA/Sub6 (1, 2, 3, 5, 7, 8, 12, 20, 25, 26, 28, 38, 40, 41, 66, 75, 77, 78) | Not supported |
Primary data network | GPRS, EDGE, CDMA2000 EV-DO Rev 0, CDMA2000 EV-DO Rev A, TD-SCDMA, UMTS, TD-HSDPA, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A, SA/NSA, Sub6 | GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE |
Secondary 2G network | CDMA 800/1900, GSM 850/900/1800/1900 | GSM 850/900/1800/1900 |
Secondary 3G network | CDMA2000 1xEV-DO TD-SCDMA 1900/2000 UMTS 850/900/1700/1900/2100 | UMTS 850/900/1900/2100 |
Secondary 4G network | LTE Cat24 (1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 18 , 19, 20, 25, 26, 28, 66) TD-LTE (38, 39, 40, 41) VoLTE | Not supported |
Secondary data network | GPRS, EDGE, CDMA2000 EV-DO Rev 0, CDMA2000 EV-DO Rev A, TD-SCDMA, UMTS, TD-HSDPA, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A, SA/NSA, Sub6 | GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+ |
📷 Camera | ||
Galaxy S25 (SM-S931B/DS 128GB) | Galaxy J7 Duo (SM-J720F/DS 32GB/3GB) | |
Back camera (main camera) | (triple camera) 50 megapixels 10MP telephoto f/2.467mm1/3.94"1.0µmPDAFOIS3x-optical-zoom 12MP ultrawide f/2.213mm120°1/2.55"1.4µmSuper-Steady | (dual camera) 13 megapixels 5MP depth f/1.9 |
Main camera resolution | 8160x6120 pixels | 4128x3096 pixels |
Video recording (primary) | 8K UHD (7680x4320) 30 fps | Full HD (1920x1080) 30 fps |
Flash | LED flash | LED flash on both cameras |
Focal aperture | f/1.8 (aperture) | f/1.9 (aperture) |
Focal length | 24mm (lens) | feature not registered |
Sensor size | 1/1.56" inches | feature not registered |
Pixel size | 1µm pixel | feature not registered |
Autofocus | PDAF: phase detection autofocus on both cameras | Autofocus |
Touch focus | Supported | Supported |
Image stabilization | OIS: Optical stabilization | EIS: Digital stabilization |
Zoom | Digital and optical zoom | Only digital zoom |
Face/smile detection | Face detection, Smile detection | Face detection, Smile detection |
BSI sensor | Supported | Not supported |
HDR | HDR photo/video and HDR photo on front camera | HDR photo only main camera |
Camera extras | 8K@24/30fps 4K@30/60fps 1080p@30/60/240fps 10-bit HDR10+ | feature not registered |
📸 Front camera | ||
Galaxy S25 (SM-S931B/DS 128GB) | Galaxy J7 Duo (SM-J720F/DS 32GB/3GB) | |
Front camera (secondary) | 12 megapixels | 8 megapixels |
Front camera resolution | 4000x3000 pixels | 3264x2448 pixels |
Video recording (secondary) | 4K UHD (3840x2160) | Full HD (1920x1080) |
Front flash | Not supported | LED |
Focal aperture | f/2.2 (aperture) | f/1.9 (aperture) |
Focal length | 26mm (lens) | feature not registered |
Sensor size | 1/3.2" inches | feature not registered |
Pixel size | 1.12µm pixel | feature not registered |
🔉 Sound and multimedia | ||
Galaxy S25 (SM-S931B/DS 128GB) | Galaxy J7 Duo (SM-J720F/DS 32GB/3GB) | |
Loudspeaker | Stereo sound 32-bit/384kHz Tuned by AKG | Mono sound (not stereo) |
Active noise cancellation | 3 microphones | Not supported |
Radio | Not supported | FM |
TV | Not supported | Not supported |
Video formats | MP4, H.265, H.264, H.263, XviD, MKV | MP4, H.264, H.263, XviD, MKV |
Audio formats | MP3, WAV, WMA, eAAC+, FLAC | MP3, WAV, WMA, eAAC+, FLAC |
🔌 Connectivity | ||
Galaxy S25 (SM-S931B/DS 128GB) | Galaxy J7 Duo (SM-J720F/DS 32GB/3GB) | |
USB | USB 3.2 Type-C, USB OTG On-The-Go | MicroUSB 2.0 |
Audio output | Type-C reversible connector | 3.5mm jack |
TV output | USB Type-C (reversible) | Not supported |
Bluetooth | 5.4 + A2DP/LE | 5.0 + A2DP/LE |
WiFi | 802.11 a/b/g/n/ac/ax/be [wifi7/6E/6] (2.4GHz, 5GHz, 6GHz) + MIMO WiFi Direct, hotspot | 802.11 a/b/g/n/ac [wifi5] (2.4GHz, 5GHz) + MIMO WiFi Direct, hotspot |
DLNA | Supported | Not supported |
GPS | A-GPS, GeoTagging, GLONASS, GALILEO, BeiDou, QZSS | A-GPS, GeoTagging, GLONASS, BeiDou |
NFC | Supported | Not supported |
Infrared port | Not supported | Not supported |
🧭 Sensors | ||
Galaxy S25 (SM-S931B/DS 128GB) | Galaxy J7 Duo (SM-J720F/DS 32GB/3GB) | |
Sensors | Accelerometer Ambient light sensor Barometer Compass Face unlock 2D Fingerprint sensor (under display) Gyroscope Hall effect Proximity sensor | Accelerometer ANT+ Face unlock 2D Fingerprint sensor (front-mounted) Proximity sensor |
Vibrating alert | Supported | Supported |
🔋 Battery | ||
Galaxy S25 (SM-S931B/DS 128GB) | Galaxy J7 Duo (SM-J720F/DS 32GB/3GB) | |
Battery type | Li-Ion: lithium-ion (Non removable) | Li-Ion: lithium-ion (Removable) |
Battery capacity | 4000 mAh | 3000 mAh |
Charger, watts | 25W Wired fast charging Reverse charging by cable USB Power Delivery 3.0 | Wired charging |
Inductive / wireless charging | 15W Qi wireless charging 45W Reverse wireless charging | Not supported |
Talk time autonomy | feature not registered | 20 hours |
Standby | feature not registered | feature not registered |
➕ Other features | ||
Galaxy S25 (SM-S931B/DS 128GB) | Galaxy J7 Duo (SM-J720F/DS 32GB/3GB) | |
Call control | Voice dialing, Voice recorder, Voice commands | Voice dialing, Voice recorder |
Messaging | SMS (T9), MMS, E-mail, Push mail | SMS (T9), MMS, E-mail, Push mail |
Hands-free calling | Supported | Supported |
Video calling | Supported | Supported |
Ringtones | Polyphonic and customized | Polyphonic and customized |
Web browser | HTML, XHTML, HTML5 | HTML, XHTML, HTML5 |
Antenna | Internal antenna | Internal antenna |
Qwerty physical keyboard | Not supported | Not supported |
Miscellaneous | • Colors: Blue Black, Icy Blue, Mint, Navy, Silver Shadow, Pink Gold, Coral Red • Samsung DeX • Samsung Wireless DeX | • Colors: Black, Gold, Rose Gold, White • Samsung Pay |
☢️ Radiation rate | ||
Galaxy S25 (SM-S931B/DS 128GB) | Galaxy J7 Duo (SM-J720F/DS 32GB/3GB) | |
SAR 1.6W/kg (USA, Mexico, etc.) | feature not registered | feature not registered |
SAR 2W/kg (Europe, UK, etc.) | 1.294W/kg (head), 1.363W/kg (body) | 0.543W/kg (head), 1.397W/kg (body) |