Samsung Galaxy Z Flip 5 (SM-F731U 256GB) vs Samsung Galaxy M31 (SM-M315F/DS 128GB/6GB)
Side by side comparison between Samsung Galaxy Z Flip 5 vs Samsung Galaxy M31 phones, differences, pros, cons and full specifications. What's the better?
,
6.7"
AMOLED
AMOLED
1080x2640
12.2
MP
MP
10mp
8GB
RAM
RAM
Octa-core
3700
mAh
mAh
(Non removable)
vs
6.4"
AMOLED
AMOLED
1080x2340
64
MP
MP
32mp
6GB
RAM
RAM
Octa-core
6000
mAh
mAh
(Non removable)
What's the better phone? Samsung Galaxy Z Flip 5 (SM-F731U 256GB)
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!
27 Advantages 
8 Advantages | 20 Common items in both devices |
| Dynamic AMOLED / Super AMOLED |
| 16 million |
| LED flash |
| Only digital zoom |
| PDAF: phase detection autofocus |
| HDR photo/video on both cameras / HDR photo on both cameras |
| f/1.8 (aperture) |
| +13 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 Z Flip 5 (SM-F731U 256GB) | Galaxy M31 (SM-M315F/DS 128GB/6GB) | |
| Model | Galaxy Z Flip 5 (SM-F731U 256GB) | Galaxy M31 (SM-M315F/DS 128GB/6GB) |
| Other model names | Galaxy Z Flip5 SM-F731U (AT&T, T-Mobile, Verizon) | Galaxy M315F/Dual-Sim (128GB + 6GB RAM) |
| Country or region available |  USA |       (Latin America), (Global, International), Philippines, India, Indonesia, Malaysia |
| Brand | Samsung | Samsung |
| Release date | 8/11/2023, Announced: 7/26/2023 | 3/5/2020, Announced: 2/25/2020 |
| Depth | 6.9 millimeters (0.27 inches) | 8.9 millimeters (0.35 inches) |
| Size (width x height) | 71.9 x 165.1 millimeters (2.83 x 6.5 in) | 75.1 x 159.2 millimeters (2.96 x 6.27 in) |
| Weight | 187 grams (6.55 ounces) | 191 grams (6.69 ounces) |
| Build, materials | Aluminum frame, flexible plastic screen, glass back Back: Gorilla Glass Victus 2 Folded: 15.1 x 71.9 x 85.1 mm | Plastic body, glass front |
| Protection against water and others | IPX8 certified: water resistant up to 1.5 meters and 30min | Not supported |
📲 Display | ||
| Galaxy Z Flip 5 (SM-F731U 256GB) | Galaxy M31 (SM-M315F/DS 128GB/6GB) | |
| Display type | Dynamic AMOLED | Super AMOLED |
| Screen size | 6.7" inches | 6.4" inches |
| Screen-to-body ratio | ~85.5% (screen-to-body ratio) | ~84.1% (screen-to-body ratio) |
| Display resolution | 1080x2640 pixels | 1080x2340 pixels (19.5:9) |
| Touchscreen | Capacitive Multitouch | Capacitive Multitouch |
| Pixel density (dot pitch) | 426 PPI | 403 PPI |
| Colors | 16 million | 16 million |
| Scratch-resistant glass | Not supported | Gorilla Glass 3 |
| Refresh rate | 120Hz | 60Hz |
| Display features | 1750nits[peak] HDR10+ Always-On Display Extra display: Super AMOLED 3.4" (720x748), 306 ppi, Gorilla Glass Victus 2 | 420nits[peak] |
🤖 Operating System | ||
| Galaxy Z Flip 5 (SM-F731U 256GB) | Galaxy M31 (SM-M315F/DS 128GB/6GB) | |
| System version | Android 13 | Android 10 |
| Firmware update | Android 14 | Android 11 |
| User Interface | One UI 5.1 / 6.0 | feature not registered |
⚙️ Processor | ||
| Galaxy Z Flip 5 (SM-F731U 256GB) | Galaxy M31 (SM-M315F/DS 128GB/6GB) | |
| Chipset | 64bit: Qualcomm Snapdragon 8 Gen 2 (SM8550-AC) (4nm) | 64bit: Samsung Exynos 9611 (10nm) |
| CPU | Octa-core, 3 processors: 1x 3.36GHz ARM Cortex-X3 (Single-core) 4x 2.8GHz ARM Cortex-A710/A715 (Quad-core) 3x 2GHz ARM Cortex-A510 (Triple-core) | Octa-core, 2 processors: 4x 2.3GHz ARM Cortex-A73 (Quad-core) 4x 1.7GHz ARM Cortex-A53 (Quad-core) |
| GPU graphical controller | Qualcomm Adreno 740 | ARM Mali-G72 MP3 (850MHz) |
| Performance (benchmark) | AnTuTu: 1200698 (v9), 1507299 (v10) Geekbench: 5478 (v5.5), 4984 (v6.0) GFXBench: 91fps (ES 3.1 onscreen) | feature not registered |
💽 Memory and storage | ||
| Galaxy Z Flip 5 (SM-F731U 256GB) | Galaxy M31 (SM-M315F/DS 128GB/6GB) | |
| RAM memory | 8GB LPDDR5X | 6GB LPDDR4X |
| Internal storage | 256GB (210GB available) UFS 4.0 | 128GB (108GB available) UFS 2.1 |
| External storage | Not supported | Until 1TB microSD, microSDXC (dedicated slot) |
📶 Mobile networks | ||
| Galaxy Z Flip 5 (SM-F731U 256GB) | Galaxy M31 (SM-M315F/DS 128GB/6GB) | |
| Dual-SIM | Dual-SIM Standby - Call active on one sim card | Dual-SIM Standby - Call active on one sim card (dedicated slot) |
| SIM card | 1 slot (Single-SIM) nano-SIM (4FF) + e-SIM | 2 slots (Dual-SIM) nano-SIM (4FF) |
| Maximum Download / Upload | 5000/1024 Mbps | 600/150 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 UMTS 850/900/1700/1900/2100 | UMTS 850/900/1700/1900/2100 |
| Primary 4G network | LTE Cat20 (1, 2, 3, 4, 5, 7, 8, 12, 13, 14, 18, 19, 20, 25, 26, 28, 29, 30, 66, 71) TD-LTE (38, 39, 40, 41, 46, 48) VoLTE | LTE Cat12/13 (1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 20, 26, 28, 66) TD-LTE (38, 40, 41) VoLTE |
| Primary 5G network | SA/NSA/Sub6 (1, 2, 3, 5, 7, 8, 12, 20, 25, 26, 28, 29, 30, 38, 41, 48, 66, 70, 71, 77, 78) mmWave (257, 258, 260, 261) | Not supported |
| Primary data network | GPRS, EDGE, CDMA2000 EV-DO Rev 0, CDMA2000 EV-DO Rev A, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A, SA/NSA, Sub6, mmWave | GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A |
| Secondary 2G network | CDMA 800/1900, GSM 850/900/1800/1900 | GSM 850/900/1800/1900 |
| Secondary 3G network | CDMA2000 1xEV-DO UMTS 850/900/1700/1900/2100 | Not supported |
| Secondary 4G network | LTE Cat20 (1, 2, 3, 4, 5, 7, 8, 12, 13, 14, 18, 19, 20, 25, 26, 28, 29, 30, 66, 71) TD-LTE (38, 39, 40, 41, 46, 48) VoLTE | Not supported |
| Secondary data network | GPRS, EDGE, CDMA2000 EV-DO Rev 0, CDMA2000 EV-DO Rev A, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A, SA/NSA, Sub6, mmWave | GPRS, EDGE |
📷 Camera | ||
| Galaxy Z Flip 5 (SM-F731U 256GB) | Galaxy M31 (SM-M315F/DS 128GB/6GB) | |
| Back camera (main camera) | (dual camera) 12.2 megapixels 12MP ultrawide f/2.2123°1.12µm | (quad camera) 64 megapixels 8MP ultrawide f/2.212mm1/4.0"1.12µm 5MP macro f/2.425mm1/5.0"1.12µm 5MP depth f/2.2 |
| Main camera resolution | 4032x3024 pixels | 10120x6328 pixels |
| Video recording (primary) | 4K UHD (3840x2160) 60 fps | 4K UHD (3840x2160) 30 fps |
| Flash | LED flash | LED flash |
| Focal aperture | f/1.8 (aperture) | f/1.8 (aperture) |
| Focal length | 24mm lens | 26mm lens |
| Sensor size | 1/1.76" inches | 1/1.72" inches |
| Pixel size | 1.8µm pixel | 0.8µm pixel |
| Autofocus | PDAF: phase detection autofocus | PDAF: 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 |
| Camera extras | 4K@30/60fps 1080p@30/60/240fps 720p@960fps HDR10+ Slow motion | feature not registered |
📸 Front camera | ||
| Galaxy Z Flip 5 (SM-F731U 256GB) | Galaxy M31 (SM-M315F/DS 128GB/6GB) | |
| Front camera (secondary) | 10 megapixels | 32 megapixels |
| Front camera resolution | 3872x2592 pixels | 6528x4896 pixels |
| Video recording (secondary) | 4K UHD (3840x2160) | 4K UHD (3840x2160) |
| Front flash | Not supported | Not supported |
| Focal aperture | f/2.2 (aperture) | f/2.0 (aperture) |
| Focal length | 23mm lens | 26mm lens |
| Sensor size | feature not registered | 1/2.8" inches |
| Pixel size | 1.22µm pixel | 0.8µm pixel |
🔉 Sound and multimedia | ||
| Galaxy Z Flip 5 (SM-F731U 256GB) | Galaxy M31 (SM-M315F/DS 128GB/6GB) | |
| Loudspeaker | Stereo sound 32-bit/384kHz Dolby Atmos Tuned by AKG | Supported |
| Active noise cancellation | 2 microphones or more | 2 microphones or more |
| Radio | Not supported | FM (RDS) |
| 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 Z Flip 5 (SM-F731U 256GB) | Galaxy M31 (SM-M315F/DS 128GB/6GB) | |
| USB | USB 3.2 Type-C, USB OTG On-The-Go | USB 2.0 Type-C, USB OTG On-The-Go |
| Audio output | Type-C reversible connector | 3.5mm jack |
| TV output | USB Type-C (reversible) | Not supported |
| Bluetooth | 5.3 + A2DP/LE | 5.0 + A2DP/LE |
| WiFi | 802.11 a/b/g/n/ac/ax [wifi6E/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 | A-GPS, GeoTagging, GLONASS, GALILEO, BeiDou |
| NFC | Supported | Not supported |
| Infrared port | Not supported | Not supported |
🧭 Sensors | ||
| Galaxy Z Flip 5 (SM-F731U 256GB) | Galaxy M31 (SM-M315F/DS 128GB/6GB) | |
| Sensors | Accelerometer Ambient light sensor Barometer Compass Face unlock Fingerprint sensor (side-mounted) Gyroscope Hall effect Proximity sensor | Accelerometer Ambient light sensor Compass Face unlock Fingerprint sensor (rear-mounted) Gyroscope |
| Vibrating alert | Supported | Supported |
🔋 Battery | ||
| Galaxy Z Flip 5 (SM-F731U 256GB) | Galaxy M31 (SM-M315F/DS 128GB/6GB) | |
| Battery type | LiPo: li-ion polymer (Non removable) | LiPo: li-ion polymer (Non removable) |
| Battery capacity | 3700 mAh | 6000 mAh |
| Charger, watts | 25W Wired fast charging Reverse charging by cable USB Power Delivery 3.0 | 15W Wired fast charging |
| Inductive / wireless charging | 15W Qi Wireless charging (Qi/WPC) 4.5W Reverse wireless charging | Not supported |
| Talk time autonomy | 34 hours (1.4 days) | feature not registered |
| Standby | feature not registered | feature not registered |
➕ Other features | ||
| Galaxy Z Flip 5 (SM-F731U 256GB) | Galaxy M31 (SM-M315F/DS 128GB/6GB) | |
| Call control | Voice dialing, Voice recorder, Voice commands | 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: Graphite, Cream, Lavender, Gray, Blue, Green, Mint, Yellow • Samsung Pay (Visa, MasterCard) | • Colors: Ocean Blue, Space Black, Red • One UI 2.0, 3.1 |
☢️ Radiation rate | ||
| Galaxy Z Flip 5 (SM-F731U 256GB) | Galaxy M31 (SM-M315F/DS 128GB/6GB) | |
| SAR 1.6W/kg (USA, Mexico, etc.) | 1.17W/kg (head), 0.45W/kg (body) | 0.52W/kg (head), 0.69W/kg (body) |
| SAR 2W/kg (Europe, UK, etc.) | feature not registered | 0.482W/kg (head), 1.127W/kg (body) |