Samsung Galaxy J4 (SM-J400M/DS 32GB) vs Xiaomi Redmi 7A (12MP 16GB)
Side by side comparison between Samsung Galaxy J4 vs Xiaomi Redmi 7A phones, differences, pros, cons and full specifications. What's the better?
,
5.5"
AMOLED
AMOLED
720x1280
13
MP
MP
5mp
2GB
RAM
RAM
Quad-core
3000
mAh
mAh
(Removable)
vs
5.45"
IPS
IPS
720x1440
12
MP
MP
5mp
2GB
RAM
RAM
Octa-core
4000
mAh
mAh
(Non removable)
What's the better phone? Xiaomi Redmi 7A (12MP 16GB)
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!
8 Advantages 
13 Advantages | 23 Common items in both devices |
| 2GB LPDDR3 |
| Until 256GB microSD, microSDXC |
| Plastic body / Plastic body, glass front |
| 16 million |
| Only digital zoom |
| Autofocus / PDAF: phase detection autofocus |
| EIS: Digital stabilization |
| +16 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 J4 (SM-J400M/DS 32GB) | Redmi 7A (12MP 16GB) | |
| Model | Galaxy J4 (SM-J400M/DS 32GB) | Redmi 7A (12MP 16GB) |
| Other model names | Galaxy J4 J400M/Dual-sim, SM-J400MZKKZTO | Redmi 7A (Global) M1903C3EG, M1903C3EH, M1903C3EI, MZB7813EU |
| Country or region available |  Brazil |    (Europe), (Global, International), India |
| Brand | Samsung | Xiaomi |
| Release date | 5/1/2018 | 7/1/2019 |
| Depth | 8.1 millimeters (0.32 inches) | 9.55 millimeters (0.38 inches) |
| Size (width x height) | 77.2 x 151.7 millimeters (3.04 x 5.97 in) | 70.41 x 146.3 millimeters (2.77 x 5.76 in) |
| Weight | 175 grams (6.13 ounces) | 165 grams (5.78 ounces) |
| Build, materials | Plastic body | Plastic body, glass front |
| Protection against water and others | Not supported | Water repellent nano-coating (don't immerse) |
📲 Display | ||
| Galaxy J4 (SM-J400M/DS 32GB) | Redmi 7A (12MP 16GB) | |
| Display type | Super AMOLED | TFT IPS LCD |
| Screen size | 5.5" inches | 5.45" inches |
| Screen-to-body ratio | ~71.2% (screen-to-body ratio) | ~74.4% (screen-to-body ratio) |
| Display resolution | 720x1280 pixels | 720x1440 pixels (18:9) |
| Touchscreen | Capacitive Multitouch | Capacitive Multitouch |
| Pixel density (dot pitch) | 267 PPI | 295 PPI |
| Colors | 16 million | 16 million |
| Scratch-resistant glass | Not supported | Not supported |
| Refresh rate | feature not registered | 60Hz |
| Display features | feature not registered | Not supported |
🤖 Operating System | ||
| Galaxy J4 (SM-J400M/DS 32GB) | Redmi 7A (12MP 16GB) | |
| System version | Android 8.0 Oreo | Android 9.0 Pie |
| Firmware update | Android 9.0 Pie | Android 10 |
| User Interface | feature not registered | feature not registered |
⚙️ Processor | ||
| Galaxy J4 (SM-J400M/DS 32GB) | Redmi 7A (12MP 16GB) | |
| Chipset | 64bit: Samsung Exynos 7570 (14nm) | 64bit: Qualcomm Snapdragon 439 SDM439 (12nm) |
| CPU | Quad-core, 1 processor: 4x 1.4GHz ARM Cortex-A53 (Quad-core) | Octa-core, 2 processors: 2x 2GHz ARM Cortex-A53 (Dual-core) 6x 1.45GHz ARM Cortex-A53 (Hexa-core) |
| GPU graphical controller | ARM Mali-T720 MP1 (830MHz) | Qualcomm Adreno 505 650Mhz |
| Performance (benchmark) | feature not registered | feature not registered |
💽 Memory and storage | ||
| Galaxy J4 (SM-J400M/DS 32GB) | Redmi 7A (12MP 16GB) | |
| RAM memory | 2GB LPDDR3 | 2GB LPDDR3 |
| Internal storage | 32GB (22GB available) Flash (EEPROM) | 16GB (9GB available) eMMC 5.1 |
| External storage | Until 256GB microSD, microSDXC (dedicated slot) | Until 256GB microSD, microSDXC (dedicated slot) |
📶 Mobile networks | ||
| Galaxy J4 (SM-J400M/DS 32GB) | Redmi 7A (12MP 16GB) | |
| Dual-SIM | Dual-SIM Standby - Call active on one sim card (dedicated slot) | Dual-SIM Standby - Call active on one sim card (dedicated slot) |
| SIM card | 2 slots (Dual-SIM) micro-SIM (3FF) | 2 slots (Dual-SIM) nano-SIM (4FF) |
| Maximum Download / Upload | 150/50 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 850/900/1700/1900/2100 | UMTS 850/900/1900/2100 |
| Primary 4G network | LTE Cat4 (Bands 1,2,3,4,5,7,8,12,13,17,28,66) | LTE Cat4 VoLTE M1903C3EG, MZB7813EU (Global version): LTE (1, 2, 3, 4, 5, 7, 8, 20) TD-LTE (38, 40) M1903C3EI, MZB7995IN, MZB7798IN, MZB7799IN, M1903C3EH (India, APAC version): LTE (1, 3, 5, 8) TD-LTE (40, 41) |
| Primary 5G network | Not supported | Not supported |
| Primary data network | GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, LTE | GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE |
| Secondary 2G network | GSM 850/900/1800/1900 | GSM 850/900/1800/1900 |
| Secondary 3G network | Not supported | UMTS 850/900/1900/2100 |
| Secondary 4G network | Not supported | Not supported |
| Secondary data network | GPRS, EDGE | GPRS, EDGE, UMTS, HSUPA, HSPA+ |
📷 Camera | ||
| Galaxy J4 (SM-J400M/DS 32GB) | Redmi 7A (12MP 16GB) | |
| Back camera (main camera) | 13 megapixels | 12 megapixels |
| Main camera resolution | 4128x3096 pixels | 4000x3000 pixels |
| Video recording (primary) | Full HD (1920x1080) 30 fps | Full HD (1920x1080) 30 fps |
| Flash | LED flash on both cameras | LED flash |
| Focal aperture | f/1.9 (aperture) | f/2.2 (aperture) |
| Focal length | 28mm lens | feature not registered |
| Sensor size | feature not registered | 1/2.9" inches |
| Pixel size | feature not registered | 1.25µm pixel |
| Autofocus | Autofocus | PDAF: phase detection autofocus |
| Touch focus | Supported | Supported |
| Image stabilization | EIS: Digital stabilization | EIS: Digital stabilization |
| Zoom | Only digital zoom | Only digital zoom |
| Face/smile detection | Face detection, Smile detection | Face detection, Smile detection |
| BSI sensor | Not supported | Not supported |
| HDR | HDR photo only main camera | HDR photo on both cameras |
| Camera extras | feature not registered | feature not registered |
📸 Front camera | ||
| Galaxy J4 (SM-J400M/DS 32GB) | Redmi 7A (12MP 16GB) | |
| Front camera (secondary) | 5 megapixels | 5 megapixels |
| Front camera resolution | 2560x1920 pixels | 2560x1920 pixels |
| Video recording (secondary) | HD (1280x720) | Full HD (1920x1080) |
| Front flash | LED | Not supported |
| Focal aperture | f/2.2 (aperture) | f/2.2 (aperture) |
| Focal length | feature not registered | feature not registered |
| Sensor size | feature not registered | 1/5" inches |
| Pixel size | feature not registered | 1.12µm pixel |
🔉 Sound and multimedia | ||
| Galaxy J4 (SM-J400M/DS 32GB) | Redmi 7A (12MP 16GB) | |
| Loudspeaker | Supported | Supported |
| Active noise cancellation | Not supported | 2 microphones or more |
| Radio | FM | FM |
| TV | Not supported | Not supported |
| Video formats | MP4, H.264, H.263, MKV, WMV | MP4, H.264, H.263, XviD, MKV |
| Audio formats | MP3, OGG, eAAC+, FLAC | MP3, WAV, WMA, eAAC+, FLAC |
🔌 Connectivity | ||
| Galaxy J4 (SM-J400M/DS 32GB) | Redmi 7A (12MP 16GB) | |
| USB | MicroUSB 2.0, USB OTG On-The-Go | MicroUSB 2.0, USB OTG On-The-Go |
| Audio output | 3.5mm jack | 3.5mm jack |
| TV output | Not supported | Not supported |
| Bluetooth | 4.2 + A2DP | 4.2 + A2DP |
| WiFi | 802.11 b/g/n [wifi4] (2.4GHz) WiFi Direct, hotspot | 802.11 b/g/n [wifi4] (2.4GHz) WiFi Direct, hotspot |
| DLNA | Not supported | Not supported |
| GPS | A-GPS, GeoTagging, GLONASS, BeiDou | A-GPS, GeoTagging, GLONASS, BeiDou |
| NFC | Not supported | Not supported |
| Infrared port | Not supported | Not supported |
🧭 Sensors | ||
| Galaxy J4 (SM-J400M/DS 32GB) | Redmi 7A (12MP 16GB) | |
| Sensors | Accelerometer Proximity sensor | Accelerometer Ambient light sensor Compass Face unlock Proximity sensor |
| Vibrating alert | Supported | Supported |
🔋 Battery | ||
| Galaxy J4 (SM-J400M/DS 32GB) | Redmi 7A (12MP 16GB) | |
| Battery type | Li-Ion: lithium-ion (Removable) | LiPo: li-ion polymer (Non removable) |
| Battery capacity | 3000 mAh | 4000 mAh |
| Charger, watts | Wired charging | 5W (5V/1A) Wired charging |
| Inductive / wireless charging | feature not registered | Not supported |
| Talk time autonomy | 20 hours | feature not registered |
| Standby | feature not registered | 456 hours (19 days) |
➕ Other features | ||
| Galaxy J4 (SM-J400M/DS 32GB) | Redmi 7A (12MP 16GB) | |
| Call control | Voice dialing, Voice recorder | 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: Black, Gold, Orchid Gray | • Colors: Black, Blue, Gold • MIUI 12 • Sony IMX486 back camera sensor • WiFi Display • 10W fast charge support, but includes normal 5W charger* |
☢️ Radiation rate | ||
| Galaxy J4 (SM-J400M/DS 32GB) | Redmi 7A (12MP 16GB) | |
| SAR 1.6W/kg (USA, Mexico, etc.) | feature not registered | 1W/kg (head), 1.12W/kg (body) |
| SAR 2W/kg (Europe, UK, etc.) | feature not registered | 0.56W/kg (head), 1.17W/kg (body) |