Samsung Galaxy S3 Slim Duos (SM-G3812B) vs Xiaomi Redmi 9 (32GB NFC)
Side by side comparison between Samsung Galaxy S3 Slim vs Xiaomi Redmi 9 phones, differences, pros, cons and full specifications. What's the better?
,
4.5"
TFT
TFT
540x960
5
MP
MP
0.3mp
1GB
RAM
RAM
Quad-core
2100
mAh
mAh
(Removable)
vs
6.53"
IPS
IPS
1080x2340
13
MP
MP
8mp
3GB
RAM
RAM
Octa-core
5020
mAh
mAh
(Non removable)
What's the better phone? Xiaomi Redmi 9 (32GB NFC)
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!
3 Advantages 
26 Advantages | 24 Common items in both devices |
| Plastic body, glass front |
| 60Hz |
| 16 million |
| LED flash |
| Only digital zoom |
| Autofocus / PDAF: phase detection autofocus |
| EIS: Digital stabilization |
| +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 | ||
| Galaxy S3 Slim Duos (SM-G3812B) | Redmi 9 (32GB NFC) | |
| Change model | ||
| Model | Galaxy S3 Slim Duos (SM-G3812B) | Redmi 9 (32GB NFC) |
| Other model names | Galaxy S3 Slim G3812B, Samsung Galaxy Win Pro | Xiaomi Redmi 9 (Global) M2004J19G |
| Country or region available |  Brazil |  (Europe) |
| Brand | Samsung | Xiaomi |
| Release date | 3/1/2014 | 6/10/2020 |
| Depth | 9.7 millimeters (0.38 inches) | 9.1 millimeters (0.36 inches) |
| Size (width x height) | 66 x 133 millimeters (2.6 x 5.24 in) | 77.01 x 163.32 millimeters (3.03 x 6.43 in) |
| Weight | 139 grams (4.87 ounces) | 198 grams (6.93 ounces) |
| Build, materials | Plastic body, glass front | Plastic body, glass front |
| Protection against water and others | Not supported | Not supported |
📲 Display | ||
| Galaxy S3 Slim Duos (SM-G3812B) | Redmi 9 (32GB NFC) | |
| Display type | TFT LCD | TFT IPS LCD |
| Screen size | 4.5" inches | 6.53" inches |
| Screen-to-body ratio | ~63.6% (screen-to-body ratio) | ~83.2% (screen-to-body ratio) |
| Display resolution | 540x960 pixels | 1080x2340 pixels (19.5:9) |
| Touchscreen | Capacitive Multitouch | Capacitive Multitouch |
| Pixel density (dot pitch) | 245 PPI | 395 PPI |
| Colors | 16 million | 16 million |
| Scratch-resistant glass | Not supported | Gorilla Glass 3 |
| Refresh rate | 60Hz | 60Hz |
| Display features | Not supported | 400nits[typ] |
🤖 Operating System | ||
| Galaxy S3 Slim Duos (SM-G3812B) | Redmi 9 (32GB NFC) | |
| System version | Android 4.2.2 Jelly Bean | Android 10 |
| Firmware update | feature not registered | Android 11 |
| User Interface | TouchWiz UX | MIUI 12 |
⚙️ Processor | ||
| Galaxy S3 Slim Duos (SM-G3812B) | Redmi 9 (32GB NFC) | |
| Chipset | 32bit: Qualcomm Snapdragon 200 (MSM8225Q) (45nm) | 64bit: MediaTek Helio G80 (MT6769V/CU) (12nm) |
| CPU | Quad-core, 1 processor: 4x 1.2GHz ARM Cortex-A5 (Quad-core) | Octa-core, 2 processors: 2x 2GHz ARM Cortex-A75 (Dual-core) 6x 1.8GHz ARM Cortex-A55 (Hexa-core) |
| GPU graphical controller | Qualcomm Adreno 203 (400MHz) | ARM Mali-G52 MC2 (950MHz) |
| Performance (benchmark) | feature not registered | AnTuTu: 201829 (v8) Geekbench: 1325 (v5.1) |
💽 Memory and storage | ||
| Galaxy S3 Slim Duos (SM-G3812B) | Redmi 9 (32GB NFC) | |
| RAM memory | 1GB LPDDR2 | 3GB LPDDR4X |
| Internal storage | 8GB (5GB available) eMMC 4.5 | 32GB (20GB available) eMMC 5.1 |
| External storage | Until 32GB microSD, microSDHC (dedicated slot) | Until 512GB microSD, microSDXC (dedicated slot) |
📶 Mobile networks | ||
| Galaxy S3 Slim Duos (SM-G3812B) | Redmi 9 (32GB NFC) | |
| 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 | 21/5.76 Mbps | 300/50 Mbps |
| Network technology | 2G, 3G | 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 850/1900/2100 | UMTS 850/900/1700/1900/2100 |
| Primary 4G network | Not supported | LTE Cat6 (1, 2, 3, 4, 5, 7, 8, 20, 28) TD-LTE (38, 40, 41) VoLTE |
| Primary 5G network | Not supported | Not supported |
| Primary data network | GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+ | GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A |
| Secondary 2G network | GSM 850/900/1800/1900 | GSM 850/900/1800/1900 |
| Secondary 3G network | Not supported | UMTS 850/900/1700/1900/2100 |
| Secondary 4G network | Not supported | LTE Cat6 (1, 2, 3, 4, 5, 7, 8, 20, 28) TD-LTE (38, 40, 41) VoLTE |
| Secondary data network | GPRS, EDGE | GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, LTE, LTE-A |
📷 Camera | ||
| Galaxy S3 Slim Duos (SM-G3812B) | Redmi 9 (32GB NFC) | |
| Back camera (main camera) | 5 megapixels | (quad camera) 13 megapixels 8MP ultrawide f/2.2118°1/4.0"1.12µm 5MP macro f/2.4 2MP depth f/2.4 |
| Main camera resolution | 2592x1944 pixels | 4128x3096 pixels |
| Video recording (primary) | Full HD (1920x1080) 30 fps | Full HD (1920x1080) 30 fps |
| Flash | LED flash | LED flash |
| Focal aperture | feature not registered | f/2.2 (aperture) |
| Focal length | feature not registered | 28mm (lens) |
| Sensor size | feature not registered | 1/3.1" inches |
| Pixel size | feature not registered | 1.12µm 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 S3 Slim Duos (SM-G3812B) | Redmi 9 (32GB NFC) | |
| Front camera (secondary) | 0.3 megapixels | 8 megapixels |
| Front camera resolution | 640x480 pixels | 3264x2448 pixels |
| Video recording (secondary) | VGA (640x480) | Full HD (1920x1080) |
| Front flash | Not supported | Not supported |
| Focal aperture | feature not registered | f/2.0 (aperture) |
| Focal length | feature not registered | 27mm (lens) |
| Sensor size | feature not registered | 1/4" inches |
| Pixel size | feature not registered | 1.12µm pixel |
🔉 Sound and multimedia | ||
| Galaxy S3 Slim Duos (SM-G3812B) | Redmi 9 (32GB NFC) | |
| Loudspeaker | Mono sound (not stereo) | Mono sound (not stereo) |
| Active noise cancellation | 1 microphone | 2 microphones or more |
| Radio | FM | FM |
| TV | Not supported | Not supported |
| Video formats | MP4, 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 S3 Slim Duos (SM-G3812B) | Redmi 9 (32GB NFC) | |
| USB | MicroUSB 2.0 | 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 | 4.0 + A2DP | 5.0 + A2DP/LE |
| 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 | Supported | Not supported |
| GPS | A-GPS, GeoTagging | A-GPS, GeoTagging, GLONASS, BeiDou |
| NFC | Not supported | Supported |
| Infrared port | Not supported | Supported |
🧭 Sensors | ||
| Galaxy S3 Slim Duos (SM-G3812B) | Redmi 9 (32GB NFC) | |
| Sensors | Accelerometer Ambient light sensor Compass Proximity sensor | Accelerometer Ambient light sensor Compass Face unlock 2D Fingerprint sensor (rear-mounted) Proximity sensor |
| Vibrating alert | Supported | Supported |
🔋 Battery | ||
| Galaxy S3 Slim Duos (SM-G3812B) | Redmi 9 (32GB NFC) | |
| Battery type | Li-Ion: lithium-ion (Removable) | LiPo: li-ion polymer (Non removable) |
| Battery capacity | 2100 mAh | 5020 mAh |
| Charger, watts | Wired charging | 18W Wired fast charging |
| Inductive / wireless charging | Not supported | Not supported |
| Talk time autonomy | feature not registered | 31 hours (1.3 days) |
| Standby | feature not registered | feature not registered |
➕ Other features | ||
| Galaxy S3 Slim Duos (SM-G3812B) | Redmi 9 (32GB NFC) | |
| 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: Black, White • Java framework | • Colors: Carbon Gray, Sunset Purple, Ocean Green, Pink/Blue • 10W charger included |
☢️ Radiation rate | ||
| Galaxy S3 Slim Duos (SM-G3812B) | Redmi 9 (32GB NFC) | |
| SAR 1.6W/kg (USA, Mexico, etc.) | 0.61W/kg (head), 1.13W/kg (body) | 0.913W/kg (head), 0.999W/kg (body) |
| SAR 2W/kg (Europe, UK, etc.) | 0.553W/kg (head), 0.395W/kg (body) | 0.711W/kg (head), 1.059W/kg (body) |