Xiaomi Redmi S2 (64GB) vs Samsung Galaxy A8 Duos (SM-A800F)
Side by side comparison between Xiaomi Redmi S2 vs Samsung Galaxy A8 phones, differences, pros, cons and full specifications. What's the better?
,
5.99"
IPS
IPS
720x1440
12
MP
MP
16mp
4GB
RAM
RAM
Octa-core
3080
mAh
mAh
(Non removable)
vs
5.7"
AMOLED
AMOLED
1080x1920
16
MP
MP
5mp
2GB
RAM
RAM
Octa-core
3050
mAh
mAh
(Non removable)
What's the better phone? Xiaomi Redmi S2 (64GB)
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!
16 Advantages 
12 Advantages | 24 Common items in both devices |
| 16 million |
| Only digital zoom |
| PDAF: phase detection autofocus / Autofocus |
| EIS: Digital stabilization |
| Full HD (1920x1080) |
| 4G LTE-A / 4G LTE |
| Capacitive |
| +17 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 | ||
| Redmi S2 (64GB) | Galaxy A8 Duos (SM-A800F) | |
| Model | Redmi S2 (64GB) | Galaxy A8 Duos (SM-A800F) |
| Other model names | 红米自拍手机S2, Xiaomi S2, Xiaomi Ysl | Samsung Galaxy A8 SM-A800F/Dual-Sim, SM-A800F/DS |
| Country or region available |   (Global, International), China |         United Arab Emirates, Philippines, India, Indonesia, Malaysia, Pakistan, Singapore, Thailand, (Global, International) |
| Brand | Xiaomi | Samsung |
| Release date | 5/1/2018 | 8/1/2015 |
| Depth | 8.1 millimeters (0.32 inches) | 5.9 millimeters (0.23 inches) |
| Size (width x height) | 77.26 x 160.73 millimeters (3.04 x 6.33 in) | 76.8 x 158 millimeters (3.02 x 6.22 in) |
| Weight | 170 grams (5.95 ounces) | 151 grams (5.29 ounces) |
| Build, materials | Plastic body, glass front | Aluminum body, glass front, plastic back |
| Protection against water and others | Not supported | Not supported |
📲 Display | ||
| Redmi S2 (64GB) | Galaxy A8 Duos (SM-A800F) | |
| Display type | TFT IPS LCD | Super AMOLED |
| Screen size | 5.99" inches | 5.7" inches |
| Screen-to-body ratio | ~74.6% (screen-to-body ratio) | ~73.8% (screen-to-body ratio) |
| Display resolution | 720x1440 pixels | 1080x1920 pixels |
| Touchscreen | Capacitive Multitouch | Capacitive Multitouch |
| Pixel density (dot pitch) | 269 PPI | 386 PPI |
| Colors | 16 million | 16 million |
| Scratch-resistant glass | Not supported | Gorilla Glass 4 |
| Refresh rate | feature not registered | feature not registered |
| Display features | feature not registered | feature not registered |
🤖 Operating System | ||
| Redmi S2 (64GB) | Galaxy A8 Duos (SM-A800F) | |
| System version | Android 7.1.2 Nougat | Android 5.1.1 Lollipop |
| Firmware update | Android 8.1 Oreo | Android 6.0 Marshmallow |
| User Interface | feature not registered | feature not registered |
⚙️ Processor | ||
| Redmi S2 (64GB) | Galaxy A8 Duos (SM-A800F) | |
| Chipset | 64bit: Qualcomm Snapdragon 625 MSM8953 (14nm) | 32bit: Samsung Exynos 5 Octa 5430 (28nm) |
| CPU | Octa-core, 1 processor: 8x 2GHz ARM Cortex-A53 (Octa-core) | Octa-core, 2 processors: 4x 1.8GHz ARM Cortex-A15 (Quad-core) 4x 1.3GHz ARM Cortex-A7 (Quad-core) |
| GPU graphical controller | Qualcomm Adreno 506 650Mhz | ARM Mali-T628 MP6 600Mhz |
| Performance (benchmark) | feature not registered | feature not registered |
💽 Memory and storage | ||
| Redmi S2 (64GB) | Galaxy A8 Duos (SM-A800F) | |
| RAM memory | 4GB LPDDR3 | 2GB LPDDR3 |
| Internal storage | 64GB (50GB available) eMMC 5.1 | 32GB (25GB available) eMMC 5.0 |
| External storage | Until 256GB microSD, microSDXC (dedicated slot) | Until 128GB microSD, microSDXC (hybrid slot/shares the same SIM-2 slot) |
📶 Mobile networks | ||
| Redmi S2 (64GB) | Galaxy A8 Duos (SM-A800F) | |
| Dual-SIM | Dual-SIM Standby - Call active on one sim card (dedicated slot) | Dual-SIM Standby - Call active on one sim card (hybrid slot/shares the same microSD slot) |
| SIM card | 2 slots (Dual-SIM) nano-SIM (4FF) | 2 slots (Dual-SIM) nano-SIM (4FF) |
| Maximum Download / Upload | 300/50 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 | CDMA 800 (China), GSM 850/900/1800/1900 | GSM 850/900/1800/1900 |
| Primary 3G network | M1803E6G Global version: UMTS 850/900/1900/2100 M1803E6E, M1803E6C, M1803E6T versions: CDMA2000 1xEV-DO TD-SCDMA 1900/2000 UMTS 850/900/1900/2100 | UMTS 850/900/1900/2100 |
| Primary 4G network | LTE Cat6 M1803E6G Global version: LTE (Bands 1,3,4,5,7,8,20) TD-LTE (Bands 38,40) M1803E6E, M1803E6C, M1803E6T versions: LTE (Bands 1,3,5,7,8) TD-LTE (Bands 34,38,39,40,41) | LTE Cat4 (Bands 1, 3, 5, 7, 8, 20) TD-LTE (Bands 40) |
| Primary 5G network | Not supported | Not supported |
| Primary data network | GPRS, EDGE, CDMA2000 EV-DO Rev 0, CDMA2000 EV-DO Rev A, TD-SCDMA, UMTS, TD-HSDPA, 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 | 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 |
📷 Camera | ||
| Redmi S2 (64GB) | Galaxy A8 Duos (SM-A800F) | |
| Back camera (main camera) | (dual camera) 12 megapixels 5MP depth | 16 megapixels |
| Main camera resolution | 4000x3000 pixels | 4608x3456 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/2.2 (aperture) | f/1.9 (aperture) |
| Focal length | feature not registered | 31mm (lens) |
| Sensor size | feature not registered | feature not registered |
| Pixel size | 1.25µm 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 |
| Camera extras | feature not registered | feature not registered |
📸 Front camera | ||
| Redmi S2 (64GB) | Galaxy A8 Duos (SM-A800F) | |
| Front camera (secondary) | 16 megapixels | 5 megapixels |
| Front camera resolution | 4608x3456 pixels | 2592x1944 pixels |
| Video recording (secondary) | HD (1280x720) | Full HD (1920x1080) |
| Front flash | LED | Not supported |
| Focal aperture | f/2.0 (aperture) | f/1.9 (aperture) |
| Focal length | feature not registered | 23mm (lens) |
| Sensor size | feature not registered | feature not registered |
| Pixel size | feature not registered | feature not registered |
🔉 Sound and multimedia | ||
| Redmi S2 (64GB) | Galaxy A8 Duos (SM-A800F) | |
| Loudspeaker | Supported | Supported |
| Active noise cancellation | 2 microphones or more | 2 microphones or more |
| Radio | FM | FM (RDS) |
| TV | Not supported | Not supported |
| Video formats | MP4, H.265, H.264, H.263, XviD, MKV | MP4, H.264, H.263, MKV, WMV |
| Audio formats | MP3, WAV, WMA, eAAC+, FLAC | MP3, WAV, WMA, eAAC+, FLAC |
🔌 Connectivity | ||
| Redmi S2 (64GB) | Galaxy A8 Duos (SM-A800F) | |
| USB | MicroUSB 2.0, USB OTG On-The-Go | MicroUSB 2.0 |
| Audio output | 3.5mm jack | 3.5mm jack |
| TV output | Not supported | Not supported |
| Bluetooth | 4.2 + A2DP | 4.1 + A2DP |
| WiFi | 802.11 b/g/n [wifi4] (2.4GHz) WiFi Direct, hotspot | 802.11 a/b/g/n/ac [wifi5] (2.4GHz, 5GHz) + MIMO WiFi Direct, hotspot |
| DLNA | Not supported | Supported |
| GPS | A-GPS, GeoTagging, GLONASS, BeiDou | A-GPS, GeoTagging, GLONASS |
| NFC | Not supported | Not supported |
| Infrared port | Supported | Not supported |
🧭 Sensors | ||
| Redmi S2 (64GB) | Galaxy A8 Duos (SM-A800F) | |
| Sensors | Accelerometer Ambient light sensor Compass Face unlock 2D Fingerprint sensor (rear-mounted) Gyroscope Proximity sensor | Accelerometer Ambient light sensor ANT+ Compass Fingerprint sensor (front-mounted) Gyroscope Proximity sensor |
| Vibrating alert | Supported | Supported |
🔋 Battery | ||
| Redmi S2 (64GB) | Galaxy A8 Duos (SM-A800F) | |
| Battery type | LiPo: li-ion polymer (Non removable) | Li-Ion: lithium-ion (Non removable) |
| Battery capacity | 3080 mAh | 3050 mAh |
| Charger, watts | 10W (5V/2A) Wired charging | Wired charging |
| Inductive / wireless charging | feature not registered | feature not registered |
| Talk time autonomy | feature not registered | 17 hours |
| Standby | feature not registered | feature not registered |
➕ Other features | ||
| Redmi S2 (64GB) | Galaxy A8 Duos (SM-A800F) | |
| 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: Gray, Gold, Rose Gold, Blue, Black • MIUI 10 • 18:9 screen | • Colors: Black, White, Gold • Samsung TouchWiz UX |
☢️ Radiation rate | ||
| Redmi S2 (64GB) | Galaxy A8 Duos (SM-A800F) | |
| SAR 1.6W/kg (USA, Mexico, etc.) | feature not registered | feature not registered |
| SAR 2W/kg (Europe, UK, etc.) | feature not registered | 0.317W/kg (head), 0.546W/kg (body) |