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Samsung Galaxy J7 Duo Specifications
Samsung
Released 2018, Apr 15
3 / 4 GB RAM · Exynos 7885 (14 nm)
- 174g, 8.2mm thickness
- Android 8.0, up to Android 9.0
- 32GB storage, microSDXC
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Genze vs community
Genze and community ratings are both shown on a /10 scale. Genze is derived from internal model scores and price rules; community averages come from approved reviews (1–10 per category).
| Category | Genze /10 | Users /10 |
|---|---|---|
| Battery | 5.9 | — |
| Display | 6.6 | — |
| Performance | 4.5 | — |
| Camera | 3.9 | — |
| Body | 5.2 | — |
| Gaming | 5.4 | — |
| Software | 4.4 | — |
| Connectivity | 1.6 | — |
| Sensors | 7.2 | — |
| Software updates | — | — |
| Clean software | — | — |
| Heating | — | — |
| Media | — | — |
Community columns fill in when reviews are approved.
Quick specifications
5.5"
720x1280 pixels
13MP
1080p
3/4GB RAM
Exynos 7885
3000mAh
Score breakdown
From specs, price tier & release year
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Full specifications
|
Network
|
Technology | GSM / HSPA / LTE |
|---|---|---|
| 2G bands | GSM 850 / 900 / 1800 / 1900 | |
| 3G bands | HSDPA 850 / 900 / 1900 / 2100 - International | |
| ??? | HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100 - USA | |
| 4G bands | 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 | |
| Speed | HSPA 42.2/5.76 Mbps, LTE Cat4 150/50 Mbps |
|
Launch
|
Announced | 2018, April. Released 2018, April |
|---|---|---|
| Status | Discontinued |
|
Body
|
Dimensions | 153.5 x 77.2 x 8.2 mm (6.04 x 3.04 x 0.32 in) |
|---|---|---|
| Weight | 174 g (6.14 oz) | |
| SIM | Single SIM (Micro-SIM) or Dual SIM (Micro-SIM, dual stand-by) |
|
Display
|
Type | Super AMOLED |
|---|---|---|
| Size | 5.5 inches, 83.4 cm2 (~70.4% screen-to-body ratio) | |
| Resolution | 720 x 1280 pixels, 16:9 ratio (~267 ppi density) |
|
Platform
|
OS | Android 8.0 (Oreo), upgradable to Android 9.0 (Pie) |
|---|---|---|
| Chipset | Exynos 7885 (14 nm) | |
| CPU | Octa-core (2x2.2 GHz Cortex-A73 & 6x1.6 GHz Cortex-A53) | |
| GPU | Mali-G71 |
|
Memory
|
Card slot | microSDXC (dedicated slot) |
|---|---|---|
| Internal | 32GB 3GB RAM, 32GB 4GB RAM | |
| ??? | eMMC 5.1 |
|
Main Camera
|
Dual | 13 MP, f/1.9, AF Auxiliary lens |
|---|---|---|
| Features | LED flash, panorama, HDR | |
| Video | 1080p@30fps |
|
Selfie camera
|
Single | 8 MP, f/1.9 |
|---|---|---|
| Features | LED flash | |
| Video | 1080p@30fps |
|
Sound
|
Loudspeaker | Yes |
|---|---|---|
| 3.5mm jack | Yes |
|
Comms
|
WLAN | Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct |
|---|---|---|
| Bluetooth | 4.2, A2DP, LE | |
| Positioning | GPS, GLONASS, BDS | |
| NFC | No | |
| Radio | FM radio | |
| USB | microUSB 2.0 |
|
Features
|
Sensors | Fingerprint (front-mounted), accelerometer, proximity |
|---|---|---|
| ??? | ANT+ |
|
Battery
|
Type | Li-Ion 3000 mAh, removable |
|---|
|
Misc
|
Colors | Black, Gold, Rose Gold, White, Blue |
|---|---|---|
| Models | SM-J720F, SM-J720F/DS, SM-J720M, SM-J720M/DS | |
| SAR EU | 0.54 W/kg (head) 1.40 W/kg (body) | |
| Price | About 240 EUR |
Samsung Galaxy J7 Duo official images
Frequently asked questions
Is Samsung Galaxy J7 Duo worth buying in 2026?
Samsung Galaxy J7 Duo is worth considering if its strengths match your priorities. Genze scores it 5/10 for its class. Read owner reviews and compare alternatives before you buy.
Is Samsung Galaxy J7 Duo good for gaming?
Samsung Galaxy J7 Duo scores 54/100 on our gaming index (chipset, display smoothness, and thermals). Casual and mid-tier titles usually run well; for competitive esports, compare frame stability and heating against phones in the same price band.
What is the battery capacity of Samsung Galaxy J7 Duo?
Samsung Galaxy J7 Duo has a 3,000 mAh battery. Real-world endurance depends on chipset efficiency, display, and usage.
What display size does Samsung Galaxy J7 Duo have?
Samsung Galaxy J7 Duo features a 5.50-inch display. See the Display section for resolution, refresh rate, and panel details.
How much RAM does Samsung Galaxy J7 Duo have?
Samsung Galaxy J7 Duo is available with 3 / 4 GB RAM variants. Storage options are listed in the Memory section.
What is the Genze score for Samsung Galaxy J7 Duo?
Genze rates Samsung Galaxy J7 Duo 5/10 based on performance, display, camera, battery, body build, and value versus phones in the same price tier.
Where do these specifications come from?
Specifications are compiled from official manufacturer and carrier sources, reviewed by our editors where possible, and enriched with Genze scores and community feedback. GenZe Rank is not responsible for errors or omissions. Regional variants, firmware updates, and retailer listings may differ from what is shown here—always confirm critical details on the official product page before you buy.
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