Physical features | Xiaomi Redmi 8 (32GB) | Samsung Galaxy J4 (SM-J400M) |
Model | Redmi 8 (32GB) | Galaxy J4 (SM-J400M) |
Other model names | Xiaomi Redmi 8 (3GB RAM + 32GB) M1908C3IC, MZB8255IN | Galaxy J4 J400M Single-sim, SM-J400MZKMTCE |
Country or region available |  (Global, International) |  (Latin America) |
Brand | Xiaomi | Samsung |
Release date | October, 2019 | May, 2018 |
Depth | 9.4 millimeters (0.37 inches) | 8.1 millimeters (0.32 inches) |
Size (width x height) | 75.4 x 156.5 millimeters (2.97 x 6.16 in) | 77.2 x 151.7 millimeters (3.04 x 5.97 in) |
Weight | 188 grams (6.58 ounces) | 175 grams (6.13 ounces) |
Qwerty physical keyboard | Not supported | Not supported |
Antenna | Internal antenna | Internal antenna |
Build, materials | Plastic body, glass front | Plastic body |
Protection against water and others | P2i certified: water repellent nano-coating | Not supported |
System (OS) | Xiaomi Redmi 8 (32GB) | Samsung Galaxy J4 (SM-J400M) |
Operating system | Android 9.0 Pie | Android 8.0 Oreo |
Firmware update | feature not registered | Android 9.0 Pie |
Hardware | Xiaomi Redmi 8 (32GB) | Samsung Galaxy J4 (SM-J400M) |
Chipset | 64bit - Qualcomm Snapdragon 439 SDM439 (12nm) | 64bit - Samsung Exynos 7 Quad 7570 (14nm) |
CPU processor | Octa-Core, 2 processors: 2Ghz Dual-Core ARM Cortex-A53 1.45Ghz Hexa-Core ARM Cortex-A53 | 1.4Ghz Quad-Core ARM Cortex-A53 |
GPU graphical controller | Qualcomm Adreno 505 650Mhz | ARM Mali-T720 MP2 |
RAM memory | 3GB LPDDR3 | 2GB LPDDR3 |
Internal storage | 32GB (21GB available) eMMC 5.1 | 32GB (22GB available) Flash (EEPROM) |
External storage | Until 512GB microSD, microSDXC (dedicated slot) | Until 256GB microSD, microSDXC (dedicated slot) |
Display | Xiaomi Redmi 8 (32GB) | Samsung Galaxy J4 (SM-J400M) |
Display type | TFT IPS LCD | Super AMOLED |
Screen size | 6.22" inches | 5.5" inches |
Screen-to-body ratio | ~81.8% (screen-to-body ratio) | ~71.2% (screen-to-body ratio) |
Display resolution | 720x1520 pixels | 720x1280 pixels |
Touchscreen | Capacitive Multitouch | Capacitive Multitouch |
Pixel density (dot pitch) | 270 PPI | 267 PPI |
Colors | 16 million | 16 million |
Scratch-resistant glass | Gorilla Glass 5 | Not supported |
Display features | feature not registered | feature not registered |
Mobile networks | Xiaomi Redmi 8 (32GB) | Samsung Galaxy J4 (SM-J400M) |
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) micro-SIM (3FF) |
Maximum download/upload | 150/50 Mbps | 150/50 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 | M1908C3IC version: UMTS 850/900/1700/1900/2100
MZB8255IN version: UMTS 850/900/1900/2100 | UMTS 850/900/1700/1900/2100 |
Primary 4G network | LTE Cat4 VoLTE
M1908C3IC version: LTE (Bands 1, 2, 3, 4, 5, 7, 8, 20) TD-LTE (Bands 38, 40)
MZB8255IN version: LTE (Bands 1, 3, 5, 8) TD-LTE (Bands 40, 41) | LTE Cat4 (Bands 1,2,3,4,5,7,8,12,13,17,28,66) |
Primary 5G network | Not supported | Not supported |
Primary data network | GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE | GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, 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 |
Calling | Xiaomi Redmi 8 (32GB) | Samsung Galaxy J4 (SM-J400M) |
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 dialing, Voice recorder |
Camera | Xiaomi Redmi 8 (32GB) | Samsung Galaxy J4 (SM-J400M) |
Back camera (main camera) | (dual camera) 12 megapixels 2MP depth | 13 megapixels |
Main camera resolution | 4000x3000 pixels | 4128x3096 pixels |
Video recording (primary) | Full HD (1920x1080) 30 fps | Full HD (1920x1080) 30 fps |
Flash | LED flash | LED flash on both cameras |
Focal aperture | f/1.8 (aperture) | f/1.9 (aperture) |
Focal length | feature not registered | 28mm lens |
Sensor size | 1/2.55" inches | feature not registered |
Pixel size | 1.4µm pixel | feature not registered |
Autofocus | PDAF: phase detection autofocus | 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 on both cameras | HDR photo only main camera |
2ª camera | Xiaomi Redmi 8 (32GB) | Samsung Galaxy J4 (SM-J400M) |
Front camera (secondary) | 8 megapixels | 5 megapixels |
Front camera resolution | 3264x2448 pixels | 2560x1920 pixels |
Video recording (secondary) | Full HD (1920x1080) | HD (1280x720) |
Front flash | Not supported | LED |
Focal aperture | f/2.0 (aperture) | f/2.2 (aperture) |
Focal length | feature not registered | feature not registered |
Sensor size | feature not registered | feature not registered |
Pixel size | 1.12µm pixel | feature not registered |
Multimedia | Xiaomi Redmi 8 (32GB) | Samsung Galaxy J4 (SM-J400M) |
Radio | FM | FM |
TV | Not supported | Not supported |
Video formats | MP4, H.264, H.263, XviD, MKV | MP4, H.264, H.263, MKV, WMV |
Audio formats | MP3, WAV, WMA, eAAC+, FLAC | MP3, OGG, eAAC+, FLAC |
Connectivity | Xiaomi Redmi 8 (32GB) | Samsung Galaxy J4 (SM-J400M) |
USB | USB 2.0 Type-C, USB OTG On-The-Go | MicroUSB 2.0, USB OTG On-The-Go |
TV output | Not supported | Not supported |
Audio output | 3.5mm jack | 3.5mm jack |
Bluetooth | 4.2 + A2DP | 4.2 + A2DP |
WiFi | 802.11 b/g/n (2.4Ghz) | 802.11 b/g/n (2.4Ghz) |
DLNA | Not supported | Not supported |
NFC | Not supported | Not supported |
GPS | A-GPS, GeoTagging, GLONASS, GALILEO, BeiDou | A-GPS, GeoTagging, GLONASS, BeiDou |
Infrared port | Supported | Not supported |
Other functions | Xiaomi Redmi 8 (32GB) | Samsung Galaxy J4 (SM-J400M) |
Active noise cancellation | Supported | Not 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 Face unlock Fingerprint sensor (rear-mounted)
| Accelerometer Proximity sensor
|
Other features | - Colors: Onyx Black, Ruby Red, Sapphire Blue, Green - MIUI 9 - WiFi direct, hotspot | - Colors: Black, Gold, Orchid Gray - WiFi direct, hotspot |
Power supply | Xiaomi Redmi 8 (32GB) | Samsung Galaxy J4 (SM-J400M) |
Battery | LiPo: Li-Ion polymer (Non removable) | Li-Ion: Lithium-Ion (Removable) |
Battery capacity | 5000 mAh | 3000 mAh |
Charger, watts | 18W Fast battery charging | Standard charging |
Talk time autonomy | 1680 minutes | 28 hours | 1.2 days | 1200 minutes | 20 hours | 0.8 day |
Standby | feature not registered | feature not registered |
Radiation rate | Xiaomi Redmi 8 (32GB) | Samsung Galaxy J4 (SM-J400M) |
SAR 1.6W/kg (USA, Mexico, etc.) | feature not registered | feature not registered |
SAR 2W/kg (Europe, UK, etc.) | feature not registered | feature not registered |