| Physical features | Samsung Galaxy S7 Duos (SM-G9308) | Asus 6z (128GB) |
| Model | Galaxy S7 Duos (SM-G9308) | 6z (128GB) |
| Other model names | Galaxy S7 Dual-Sim G9308 (China Unicom), Samsung Hero | Asus Zenfone 6z 2019 (6GB RAM) ZS630KL |
| Country or region available |  
China, Hong Kong | 
India |
| Brand | Samsung | Asus |
| Release date | March, 2016 | May, 2019 |
| Depth | 7.9 millimeters (0.31 inches) | 9.2 millimeters (0.36 inches) |
| Size (width x height) | 69.6 x 142.4 millimeters (2.74 x 5.61 in) | 75.4 x 159.1 millimeters (2.97 x 6.26 in) |
| Weight | 152 grams (5.32 ounces) | 190 grams (6.65 ounces) |
| Qwerty physical keyboard | Not supported | Not supported |
| Antenna | Internal antenna | Internal antenna |
| Build, materials | Aluminum frame, glass front/back | Aluminum frame, glass front/back |
| Protection against water and others | IP68 certified: dust proof and waterproof over 1.5 meter and 30min | Not supported |
| System (OS) | Samsung Galaxy S7 Duos (SM-G9308) | Asus 6z (128GB) |
| Operating system | Android 6.0.1 Marshmallow | Android 9.0 Pie |
| Firmware update | Android 8.0 Oreo | feature not registered |
| Hardware | Samsung Galaxy S7 Duos (SM-G9308) | Asus 6z (128GB) |
| Chipset | 64bit - Qualcomm Snapdragon 820 MSM8996 (14nm) | 64bit - Qualcomm Snapdragon 855 SDM855 (7nm) |
| CPU processor | Quad-Core, 2 processors:
2.15Ghz Dual-Core Kryo
1.6Ghz Dual-Core Kryo | Octa-Core, 3 processors:
2.84Ghz Single-Core Kryo 485
2.42Ghz 3-Cores Kryo 485
1.78Ghz Quad-Core Kryo 485 |
| GPU graphical controller | Qualcomm Adreno 530 | Qualcomm Adreno 640 |
| RAM memory | 4GB LPDDR4 | 6GB LPDDR4X |
| Internal storage | 32GB (22GB available)
UFS 2.0 | 128GB (110GB available)
UFS 2.1 |
| External storage | Until 256GB microSD, microSDXC
(hybrid slot/shares the same SIM-2 slot) | Until 1TB microSD, microSDXC
(dedicated slot) |
| Display | Samsung Galaxy S7 Duos (SM-G9308) | Asus 6z (128GB) |
| Display type | Super AMOLED | TFT IPS LCD |
| Screen size | 5.1" inches | 6.4" inches |
| Screen-to-body ratio | ~72.3% (screen-to-body ratio) | ~83.8% (screen-to-body ratio) |
| Display resolution | 1440x2560 pixels | 1080x2340 pixels (19.5:9) |
| Touchscreen | Capacitive Multitouch 10-points | Capacitive Multitouch 10-points |
| Pixel density (dot pitch) | 576 PPI | 403 PPI |
| Colors | 16 million | 16 million |
| Scratch-resistant glass | Gorilla Glass 4 | Gorilla Glass 6 |
| Display features | feature not registered | 60Hz, 600 nits, HDR10 |
| Mobile networks | Samsung Galaxy S7 Duos (SM-G9308) | Asus 6z (128GB) |
| Dual-SIM | Dual-SIM Standby - Call active on one sim card
(hybrid slot/shares the same microSD slot) | Dual-SIM Standby - Call active on one sim card
(dedicated slot) |
| SIM card | 2 slots (Dual-SIM)
nano-SIM (4FF) | 2 slots (Dual-SIM)
nano-SIM (4FF) |
| Maximum download/upload | 450/50 Mbps | 1024/150 Mbps |
| Network technology | 2G, 3G, 4G | 2G, 3G, 4G |
| Frequency, bands | Expand band detailsCollapse details |
| GSM Mhz band | Quad-Band 850/900/1800/1900 | Quad-Band 850/900/1800/1900 |
| Primary 2G network | GSM 850/900/1800/1900 | GSM 850/900/1800/1900 |
| Primary 3G network | TD-SCDMA 1900/2000
UMTS 850/900/1900/2100 | UMTS 850/900/1900/2100 |
| Primary 4G network | LTE Cat9 (Bands 1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 18, 19, 20, 25, 26)
TD-LTE (Bands 38, 39, 40, 41) | LTE Cat16/13 (Bands 1, 2, 3, 5, 7, 8, 20, 28)
TD-LTE (Bands 38, 40, 41)
VoLTE |
| Primary 5G network | Not supported | Not supported |
| Primary data network | GPRS, EDGE, TD-SCDMA, UMTS, TD-HSDPA, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A | GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A |
| Secondary 2G network | GSM 850/900/1800/1900 | GSM 850/900/1800/1900 |
| Secondary 3G network | Not supported | Not supported |
| Secondary 4G network | Not supported | Not supported |
| Secondary data network | GPRS, EDGE | GPRS, EDGE |
| Calling | Samsung Galaxy S7 Duos (SM-G9308) | Asus 6z (128GB) |
| Messaging | SMS (T9), MMS, E-mail, Push mail | SMS (T9), MMS, E-mail, Push mail |
| Speakerphone | Supported | Supported |
| Video calling | Supported | Supported |
| Call control | Voice dialing, Voice recorder, Voice commands | Voice dialing, Voice recorder |
| Camera | Samsung Galaxy S7 Duos (SM-G9308) | Asus 6z (128GB) |
| Back camera (main camera) | 12.2 megapixels | (dual camera)
48 megapixels
13MP ultrawidef/2.411mm |
| Main camera resolution | 4032x3024 pixels | 8000x6000 pixels |
| Video recording (primary) | 4K UHD (3840x2160) 30 fps | 4K UHD (3840x2160) 60 fps |
| Flash | LED flash | Dual-LED flash |
| Focal aperture | f/1.7 (aperture) | f/1.8 (aperture) |
| Focal length | 26mm lens | 26mm lens |
| Sensor size | 1/2.55" inches | 1/2" inches |
| Pixel size | 1.4µm pixel | 0.8µm pixel |
| Autofocus | PDAF: phase detection autofocus | LDAF/PDAF: laser/phase detection autofocus |
| Touch focus | Supported | Supported |
| Image stabilization | OIS: Optical stabilization | EIS: Digital stabilization |
| Zoom | Only digital zoom | Only digital zoom |
| Face/smile detection | Face detection, Smile detection | Face detection, Smile detection |
| BSI sensor | Supported | Not supported |
| HDR | HDR photo/video on both cameras | HDR photo on both cameras |
| 2ª camera | Samsung Galaxy S7 Duos (SM-G9308) | Asus 6z (128GB) |
| Front camera (secondary) | 5 megapixels | Uses the back motorized camera (flip-up/rotating) |
| Front camera resolution | 2592x1944 pixels | Not supported |
| Video recording (secondary) | 2K UHD (2560x1440) | Not supported |
| Front flash | Not supported | Not supported |
| Focal aperture | f/1.7 (aperture) | feature not registered |
| Focal length | 22mm lens | feature not registered |
| Sensor size | 1/4.1" inches | feature not registered |
| Pixel size | 1.34µm pixel | feature not registered |
| Multimedia | Samsung Galaxy S7 Duos (SM-G9308) | Asus 6z (128GB) |
| Radio | Not supported | FM |
| TV | Not supported | Not supported |
| Video formats | MP4, H.264, H.263, DivX, XviD, WMV | MP4, H.265, H.264, H.263, XviD, MKV |
| Audio formats | MP3, WAV, WMA, eAAC+, FLAC | MP3, WAV, WMA, eAAC+, FLAC |
| Connectivity | Samsung Galaxy S7 Duos (SM-G9308) | Asus 6z (128GB) |
| USB | MicroUSB 2.0, USB OTG On-The-Go | USB 2.0 Type-C reversible connector |
| TV output | Not supported | Not supported |
| Audio output | 3.5mm jack | 3.5mm jack |
| Bluetooth | 4.2 + A2DP | 5.0 + A2DP/LE |
| WiFi | 802.11 a/b/g/n/ac (2.4Ghz, 5Ghz) + MIMO | 802.11 a/b/g/n/ac (2.4Ghz, 5Ghz) + MIMO |
| DLNA | Supported | Not supported |
| NFC | Supported | Supported |
| GPS | A-GPS, GeoTagging, GLONASS, BeiDou | A-GPS, GeoTagging, GLONASS, GALILEO, BeiDou, QZSS |
| Infrared port | Not supported | Not supported |
| Other functions | Samsung Galaxy S7 Duos (SM-G9308) | Asus 6z (128GB) |
| Active noise cancellation | Supported | Supported |
| Vibrating alert | Supported | Supported |
| Ringtones | Polyphonic and customized | Polyphonic and customized |
| Web browser | HTML, XHTML, HTML5 | HTML, XHTML, HTML5 |
| Sensors | Accelerometer
Proximity sensor
Compass
Ambient Light sensor
Gyroscope
Barometer
Heart rate
SpO2
Hall effect
Fingerprint sensor (front-mounted)
ANT+
| Accelerometer
Proximity sensor
Compass
Ambient Light sensor
Gyroscope
Hall effect
Face unlock
Fingerprint sensor (rear-mounted)
|
| Other features | - Colors: Black, Gold, Silver
- Body material: Aluminium
- Corning Gorilla Glass back panel
- USB OTG On-The-Go
- Samsung Gear VR compatible
- Fast battery charging: 83% in 30min
- Quick Charge 3.0
- Qi Wireless charging (PMA)
- OneDrive 115GB
- Samsung Pay
- WiFi direct, hotspot
- IP68 certified: dust proof and water resistant over 1.5 meter and 30min | - Colors: Midnight Black, Twilight Silver
- 19.5:9, HDR10, DCI-P3 100% display
- Quick Charge 4.0
- 24-bit/192kHz audio
- DTS Headphone X
- Motorized flip-up main/selfie camera
- Google Pay
- WiFi direct, hotspot |
| Power supply | Samsung Galaxy S7 Duos (SM-G9308) | Asus 6z (128GB) |
| Battery | Li-Ion: Lithium-Ion (Non removable) | LiPo: Li-Ion polymer (Non removable) |
| Battery capacity | 3000 mAh | 5000 mAh |
| Charger, watts | 15W Fast battery charging
Qi wireless charging (Qi/PMA) | 18W (9V/2A) Fast battery charging |
| Talk time autonomy | 1680 minutes | 28 hours | 1.2 days | 1980 minutes | 33 hours | 1.4 days |
| Standby | 17280 minutes | 288 hours | 12 days | 37440 minutes | 624 hours | 26 days |
| Radiation rate | Samsung Galaxy S7 Duos (SM-G9308) | Asus 6z (128GB) |
| SAR 1.6W/kg (USA, Mexico, etc.) | feature not registered | feature not registered |
| SAR 2W/kg (Europe, UK, etc.) | 0.652W/kg (head) | 0.693W/kg (body) | feature not registered |