Samsung Galaxy A9 2018 (SM-A920F/DS 128GB/8GB) vs Samsung Galaxy A31 (SM-A315F)
Side by side comparison between Samsung Galaxy A9 (2018) vs Samsung Galaxy A31 phones, differences, pros, cons and full specifications. What's the better?
,
6.3"
AMOLED
AMOLED
1080x2220
24
MP
MP
24mp
8GB
RAM
RAM
Octa-core
3800
mAh
mAh
(Non removable)
vs
6.4"
AMOLED
AMOLED
1080x2400
48
MP
MP
20mp
4GB
RAM
RAM
Octa-core
5000
mAh
mAh
(Non removable)
What's the better phone? Samsung Galaxy A9 2018 (SM-A920F/DS 128GB/8GB)
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 Advantages 
8 Advantages | 32 Common items in both devices |
| 128GB (110GB available) / 128GB (104GB available) |
| eMMC 5.1 |
| Until 1TB microSD, microSDXC |
| Super AMOLED |
| 60Hz |
| 16 million |
| LED flash |
| +25 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 A9 2018 (SM-A920F/DS 128GB/8GB) | Galaxy A31 (SM-A315F) | |
| Model | Galaxy A9 2018 (SM-A920F/DS 128GB/8GB) | Galaxy A31 (SM-A315F) |
| Other model names | Galaxy A9 SM-A920F/Dual-Sim (8GB RAM), Samsung A920 | Galaxy A31 SM-A315F (Single-Sim) NFC (128GB + 4GB RAM) |
| Country or region available |  (Europe) |  South Africa |
| Brand | Samsung | Samsung |
| Release date | 10/11/2018 | 4/27/2020, Announced: 3/24/2020 |
| Depth | 7.8 millimeters (0.31 inches) | 8.6 millimeters (0.34 inches) |
| Size (width x height) | 77 x 162.5 millimeters (3.03 x 6.4 in) | 73.1 x 159.3 millimeters (2.88 x 6.27 in) |
| Weight | 183 grams (6.41 ounces) | 185 grams (6.48 ounces) |
| Build, materials | Aluminum body, glass front | Plastic body, glass front |
| Protection against water and others | Not supported | Not supported |
📲 Display | ||
| Galaxy A9 2018 (SM-A920F/DS 128GB/8GB) | Galaxy A31 (SM-A315F) | |
| Display type | Super AMOLED | Super AMOLED |
| Screen size | 6.3" inches | 6.4" inches |
| Screen-to-body ratio | ~80.5% (screen-to-body ratio) | ~84.9% (screen-to-body ratio) |
| Display resolution | 1080x2220 pixels (18.5:9) | 1080x2400 pixels (20:9) |
| Touchscreen | Capacitive Multitouch | Capacitive Multitouch |
| Pixel density (dot pitch) | 392 PPI | 411 PPI |
| Colors | 16 million | 16 million |
| Scratch-resistant glass | Gorilla Glass 5 | Not supported |
| Refresh rate | 60Hz | 60Hz |
| Display features | Not supported | Not supported |
🤖 Operating System | ||
| Galaxy A9 2018 (SM-A920F/DS 128GB/8GB) | Galaxy A31 (SM-A315F) | |
| System version | Android 8.0 Oreo | Android 10 |
| Firmware update | Android 9.0 Pie | Android 11 |
| User Interface | feature not registered | One UI 2.5 / 3.1 |
⚙️ Processor | ||
| Galaxy A9 2018 (SM-A920F/DS 128GB/8GB) | Galaxy A31 (SM-A315F) | |
| Chipset | 64bit: Qualcomm Snapdragon 660 SDM660 (14nm) | 64bit: MediaTek Helio P65 (MT6768) (12nm) |
| CPU | Octa-core, 2 processors: 4x 2.2GHz Kryo 260 Gold (Quad-core) 4x 1.8GHz Kryo 260 Silver (Quad-core) | Octa-core, 2 processors: 2x 2GHz ARM Cortex-A75 (Dual-core) 6x 1.7GHz ARM Cortex-A55 (Hexa-core) |
| GPU graphical controller | Qualcomm Adreno 512 650Mhz | ARM Mali-G52 MC2 (820MHz) |
| Performance (benchmark) | feature not registered | AnTuTu: 151815 (v8) Geekbench: 5096 (v4.4), 1216 (v5.1) GFXBench: 7fps (ES 3.1 onscreen) |
💽 Memory and storage | ||
| Galaxy A9 2018 (SM-A920F/DS 128GB/8GB) | Galaxy A31 (SM-A315F) | |
| RAM memory | 8GB LPDDR4X | 4GB LPDDR4X |
| Internal storage | 128GB (110GB available) eMMC 5.1 | 128GB (104GB available) eMMC 5.1 |
| External storage | Until 1TB microSD, microSDXC (dedicated slot) | Until 1TB microSD, microSDXC (dedicated slot) |
📶 Mobile networks | ||
| Galaxy A9 2018 (SM-A920F/DS 128GB/8GB) | Galaxy A31 (SM-A315F) | |
| Dual-SIM | Dual-SIM Standby - Call active on one sim card (dedicated slot) | Not supported |
| SIM card | 2 slots (Dual-SIM) nano-SIM (4FF) | 1 slot (Single-SIM) nano-SIM (4FF) |
| Maximum Download / Upload | 450/50 Mbps | 150/50 Mbps |
| Network technology | 2G, 3G, 4G | 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 | GSM 850/900/1800/1900 | GSM 850/900/1800/1900 |
| Primary 3G network | UMTS 850/900/1900/2100 | UMTS 850/900/1900/2100 |
| Primary 4G network | LTE Cat9 (1, 3, 5, 7, 8, 20) TD-LTE (38, 40) | LTE Cat4 (1, 2, 3, 5, 7, 8, 20) TD-LTE (38, 40, 41) VoLTE |
| Primary 5G network | Not supported | Not supported |
| Primary data network | GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A | GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE |
| Secondary 2G network | GSM 850/900/1800/1900 | Not supported |
| Secondary 3G network | Not supported | Not supported |
| Secondary 4G network | Not supported | Not supported |
| Secondary data network | GPRS, EDGE | Not supported |
📷 Camera | ||
| Galaxy A9 2018 (SM-A920F/DS 128GB/8GB) | Galaxy A31 (SM-A315F) | |
| Back camera (main camera) | (quad camera) 24 megapixels 10MP telephoto f/2.452mm1/3.9"1.0µmAF2x-optical-zoom 8MP ultrawide f/2.412mm1/4.0"1.12µm 5MP depth f/2.2 | (quad camera) 48 megapixels 8MP ultrawide f/2.2123°1/4"1.12µm 5MP macro f/2.4 5MP depth f/2.4 |
| Main camera resolution | 5656x4240 pixels | 8000x6000 pixels |
| Video recording (primary) | 4K UHD (3840x2160) 30 fps | Full HD (1920x1080) 30 fps |
| Flash | LED flash | LED flash |
| Focal aperture | f/1.7 (aperture) | f/2.0 (aperture) |
| Focal length | 27mm (lens) | 26mm (lens) |
| Sensor size | 1/2.8" inches | 1/2" inches |
| Pixel size | 0.9µm pixel | 0.8µm pixel |
| Autofocus | PDAF: phase detection autofocus | PDAF: phase detection autofocus |
| Touch focus | Supported | Supported |
| Image stabilization | EIS: Digital 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 | Not supported | Not supported |
| HDR | HDR photo on both cameras | HDR photo on both cameras |
| Camera extras | feature not registered | feature not registered |
📸 Front camera | ||
| Galaxy A9 2018 (SM-A920F/DS 128GB/8GB) | Galaxy A31 (SM-A315F) | |
| Front camera (secondary) | 24 megapixels | 20 megapixels |
| Front camera resolution | 5656x4240 pixels | 5184x3840 pixels |
| Video recording (secondary) | Full HD (1920x1080) | Full HD (1920x1080) |
| Front flash | Not supported | Not supported |
| Focal aperture | f/2.0 (aperture) | f/2.2 (aperture) |
| Focal length | 27mm (lens) | feature not registered |
| Sensor size | 1/2.8" inches | feature not registered |
| Pixel size | 0.9µm pixel | feature not registered |
🔉 Sound and multimedia | ||
| Galaxy A9 2018 (SM-A920F/DS 128GB/8GB) | Galaxy A31 (SM-A315F) | |
| Loudspeaker | Supported | Mono sound (not stereo) |
| Active noise cancellation | 2 microphones or more | 2 microphones or more |
| Radio | FM | FM |
| TV | Not supported | Not supported |
| Video formats | MP4, H.265, H.264, H.263, XviD, MKV | MP4, H.265, H.264, H.263, XviD, MKV |
| Audio formats | MP3, WAV, WMA, eAAC+, FLAC | MP3, WAV, WMA, eAAC+, FLAC |
🔌 Connectivity | ||
| Galaxy A9 2018 (SM-A920F/DS 128GB/8GB) | Galaxy A31 (SM-A315F) | |
| USB | USB 2.0 Type-C, USB OTG On-The-Go | USB 2.0 Type-C, USB OTG On-The-Go |
| Audio output | 3.5mm jack | 3.5mm jack |
| TV output | Not supported | USB Type-C (reversible) |
| Bluetooth | 5.0 + A2DP/LE | 5.0 + A2DP/LE |
| WiFi | 802.11 a/b/g/n/ac [wifi5] (2.4GHz, 5GHz) + MIMO WiFi Direct, hotspot | 802.11 a/b/g/n/ac [wifi5] (2.4GHz, 5GHz) + MIMO WiFi Direct, hotspot |
| DLNA | Not supported | Not supported |
| GPS | A-GPS, GeoTagging, GLONASS, GALILEO, BeiDou | A-GPS, GeoTagging, GLONASS, GALILEO, BeiDou |
| NFC | Supported | Supported |
| Infrared port | Not supported | Not supported |
🧭 Sensors | ||
| Galaxy A9 2018 (SM-A920F/DS 128GB/8GB) | Galaxy A31 (SM-A315F) | |
| Sensors | Accelerometer Ambient light sensor ANT+ Compass Fingerprint sensor (rear-mounted) Gyroscope Hall effect Proximity sensor | Accelerometer Ambient light sensor Compass Face unlock Fingerprint sensor (under display) Gyroscope Virtual proximity sensor |
| Vibrating alert | Supported | Supported |
🔋 Battery | ||
| Galaxy A9 2018 (SM-A920F/DS 128GB/8GB) | Galaxy A31 (SM-A315F) | |
| Battery type | Li-Ion: lithium-ion (Non removable) | LiPo: li-ion polymer (Non removable) |
| Battery capacity | 3800 mAh | 5000 mAh |
| Charger, watts | 18W Wired fast charging | 15W Wired fast charging |
| Inductive / wireless charging | Not supported | Not supported |
| Talk time autonomy | feature not registered | feature not registered |
| Standby | feature not registered | feature not registered |
➕ Other features | ||
| Galaxy A9 2018 (SM-A920F/DS 128GB/8GB) | Galaxy A31 (SM-A315F) | |
| Call control | Voice dialing, Voice recorder | Voice dialing, Voice recorder, Voice commands |
| 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: Caviar Black, Lemonade Blue, Bubblegum Pink • Samsung Pay • Dolby Atmos | • Colors: Prism Black, Prism Blue, Prism Red, Prism White |
☢️ Radiation rate | ||
| Galaxy A9 2018 (SM-A920F/DS 128GB/8GB) | Galaxy A31 (SM-A315F) | |
| SAR 1.6W/kg (USA, Mexico, etc.) | 0.27W/kg (head), 0.84W/kg (body) | feature not registered |
| SAR 2W/kg (Europe, UK, etc.) | feature not registered | 0.488W/kg (head), 1.68W/kg (body) |