Xiaomi Redmi Note 12 (China 256GB) vs Samsung Galaxy S3 Slim Duos (SM-G3812B)
Side by side comparison between Xiaomi Redmi Note 12 vs Samsung Galaxy S3 Slim phones, differences, pros, cons and full specifications. What's the better?
,
6.67"
AMOLED
AMOLED
1080x2400
48
MP
MP
8mp
8GB
RAM
RAM
Octa-core
5000
mAh
mAh
(Non removable)
vs
4.5"
TFT
TFT
540x960
5
MP
MP
0.3mp
1GB
RAM
RAM
Quad-core
2100
mAh
mAh
(Removable)
What's the better phone? Xiaomi Redmi Note 12 (China 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!
23 Advantages 
5 Advantages | 18 Common items in both devices |
| Plastic body, glass front |
| 16 million |
| LED flash |
| Only digital zoom |
| PDAF: phase detection autofocus / Autofocus |
| EIS: Digital stabilization |
| Full HD (1920x1080) |
| +11 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 Note 12 (China 256GB) | Galaxy S3 Slim Duos (SM-G3812B) | |
| Model | Redmi Note 12 (China 256GB) | Galaxy S3 Slim Duos (SM-G3812B) |
| Other model names | Redmi Note 12 5G 22101317C | Galaxy S3 Slim G3812B, Samsung Galaxy Win Pro |
| Country or region available |  China |  Brazil |
| Brand | Xiaomi | Samsung |
| Release date | 11/1/2022, Announced: 10/27/2022 | 3/1/2014 |
| Depth | 8 millimeters (0.31 inches) | 9.7 millimeters (0.38 inches) |
| Size (width x height) | 76.21 x 165.88 millimeters (3 x 6.53 in) | 66 x 133 millimeters (2.6 x 5.24 in) |
| Weight | 188 grams (6.58 ounces) | 139 grams (4.87 ounces) |
| Build, materials | Plastic body, glass front | Plastic body, glass front |
| Protection against water and others | IP53 certified: protection against dust and splashing | Not supported |
📲 Display | ||
| Redmi Note 12 (China 256GB) | Galaxy S3 Slim Duos (SM-G3812B) | |
| Display type | AMOLED | TFT LCD |
| Screen size | 6.67" inches | 4.5" inches |
| Screen-to-body ratio | ~85% (screen-to-body ratio) | ~63.6% (screen-to-body ratio) |
| Display resolution | 1080x2400 pixels (20:9) | 540x960 pixels |
| Touchscreen | Capacitive Multitouch | Capacitive Multitouch |
| Pixel density (dot pitch) | 395 PPI | 245 PPI |
| Colors | 16 million | 16 million |
| Scratch-resistant glass | Not supported | Not supported |
| Refresh rate | 120Hz | feature not registered |
| Display features | 450nits[typ], 1200nits[peak] 100% DCI P3 Touch Sampling Rate: 240Hz | feature not registered |
🤖 Operating System | ||
| Redmi Note 12 (China 256GB) | Galaxy S3 Slim Duos (SM-G3812B) | |
| System version | Android 12 | Android 4.2.2 Jelly Bean |
| Firmware update | Android 13 | feature not registered |
| User Interface | MIUI 13 / 14 | feature not registered |
⚙️ Processor | ||
| Redmi Note 12 (China 256GB) | Galaxy S3 Slim Duos (SM-G3812B) | |
| Chipset | 64bit: Qualcomm Snapdragon 4 Gen 1 (SM4375) (6nm) | 32bit: Qualcomm Snapdragon 200 MSM8225Q |
| CPU | Octa-core, 2 processors: 2x 2GHz ARM Cortex-A78 (Dual-core) 6x 1.8GHz ARM Cortex-A55 (Hexa-core) | Quad-core, 1 processor: 4x 1.2GHz ARM Cortex-A5 (Quad-core) |
| GPU graphical controller | Qualcomm Adreno 619 | Qualcomm Adreno 203 |
| Performance (benchmark) | AnTuTu: 360847 (v9) Geekbench: 1998 (v5.1), 2017 (v6) | feature not registered |
💽 Memory and storage | ||
| Redmi Note 12 (China 256GB) | Galaxy S3 Slim Duos (SM-G3812B) | |
| RAM memory | 8GB LPDDR4X | 1GB LPDDR2 |
| Internal storage | 256GB (218GB available) UFS 2.2 | 8GB (5GB available) |
| External storage | Not supported | Until 32GB microSD, microSDHC (dedicated slot) |
📶 Mobile networks | ||
| Redmi Note 12 (China 256GB) | Galaxy S3 Slim Duos (SM-G3812B) | |
| Dual-SIM | Dual-SIM Standby - Call active on one sim card | Dual-SIM Standby - Call active on one sim card (dedicated slot) |
| SIM card | 2 slots (Dual-SIM) nano-SIM (4FF) | 2 slots (Dual-SIM) micro-SIM (3FF) |
| Maximum Download / Upload | 2000/1024 Mbps | 21/5.76 Mbps |
| Network technology | 2G, 3G, 4G, 5G | 2G, 3G |
| 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, GSM 850/900/1800/1900 | GSM 850/900/1800/1900 |
| Primary 3G network | CDMA2000 1xEV-DO UMTS 850/900/1900/2100 | UMTS 850/1900/2100 |
| Primary 4G network | LTE Cat15 (1, 3, 5, 7, 8) TD-LTE (34, 38, 39, 40, 41) VoLTE | Not supported |
| Primary 5G network | SA/NSA (1, 3, 5, 8, 28, 41, 77, 78) | 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 | GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+ |
| Secondary 2G network | CDMA 800, GSM 850/900/1800/1900 | GSM 850/900/1800/1900 |
| Secondary 3G network | CDMA2000 1xEV-DO UMTS 850/900/1900/2100 | Not supported |
| Secondary 4G network | LTE Cat15 (1, 3, 5, 7, 8) TD-LTE (34, 38, 39, 40, 41) 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 | GPRS, EDGE |
📷 Camera | ||
| Redmi Note 12 (China 256GB) | Galaxy S3 Slim Duos (SM-G3812B) | |
| Back camera (main camera) | (dual camera) 48 megapixels 2MP depth f/2.41.75µm | 5 megapixels |
| Main camera resolution | 8000x6000 pixels | 2592x1944 pixels |
| Video recording (primary) | Full HD (1920x1080) 30 fps | Full HD (1920x1080) 30 fps |
| Flash | LED flash | LED flash |
| Focal aperture | f/1.8 (aperture) | feature not registered |
| Focal length | feature not registered | feature not registered |
| Sensor size | 1/2.76" inches | feature not registered |
| Pixel size | 0.8µm 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 | Supported | Not supported |
| HDR | HDR photo on both cameras | HDR photo only main camera |
| Camera extras | 1080p@30fps 720p@120fps (slow motion) | feature not registered |
📸 Front camera | ||
| Redmi Note 12 (China 256GB) | Galaxy S3 Slim Duos (SM-G3812B) | |
| Front camera (secondary) | 8 megapixels | 0.3 megapixels |
| Front camera resolution | 3264x2448 pixels | 640x480 pixels |
| Video recording (secondary) | Full HD (1920x1080) | VGA (640x480) |
| Front flash | Not supported | Not supported |
| Focal aperture | f/2.0 (aperture) | feature not registered |
| Focal length | feature not registered | feature not registered |
| Sensor size | 1/4" inches | feature not registered |
| Pixel size | 1.12µm pixel | feature not registered |
🔉 Sound and multimedia | ||
| Redmi Note 12 (China 256GB) | Galaxy S3 Slim Duos (SM-G3812B) | |
| Loudspeaker | Mono sound (not stereo) 24-bit/192kHz | Supported |
| Active noise cancellation | 2 microphones or more | Not supported |
| Radio | Not supported | FM |
| TV | Not supported | Not supported |
| Video formats | MP4, H.265, H.264, H.263, XviD, MKV | MP4, H.264, H.263, XviD, MKV |
| Audio formats | MP3, WAV, WMA, eAAC+, FLAC | MP3, WAV, WMA, eAAC+, FLAC |
🔌 Connectivity | ||
| Redmi Note 12 (China 256GB) | Galaxy S3 Slim Duos (SM-G3812B) | |
| USB | USB 2.0 Type-C, USB OTG On-The-Go | MicroUSB 2.0 |
| Audio output | 3.5mm jack | 3.5mm jack |
| TV output | USB Type-C (reversible) | Not supported |
| Bluetooth | 5.1 + A2DP/LE | 4.0 + A2DP |
| WiFi | 802.11 a/b/g/n/ac [wifi5] (2.4GHz, 5GHz) + MIMO WiFi Direct, hotspot | 802.11 b/g/n [wifi4] (2.4GHz) WiFi Direct, hotspot |
| DLNA | Not supported | Supported |
| GPS | A-GPS, GeoTagging, GLONASS, GALILEO, BeiDou | A-GPS, GeoTagging |
| NFC | Not supported | Not supported |
| Infrared port | Supported | Not supported |
🧭 Sensors | ||
| Redmi Note 12 (China 256GB) | Galaxy S3 Slim Duos (SM-G3812B) | |
| Sensors | Accelerometer Ambient light sensor Compass Face unlock Fingerprint sensor (side-mounted) Gyroscope Proximity sensor | Accelerometer Ambient light sensor Compass Proximity sensor |
| Vibrating alert | Supported | Supported |
🔋 Battery | ||
| Redmi Note 12 (China 256GB) | Galaxy S3 Slim Duos (SM-G3812B) | |
| Battery type | LiPo: li-ion polymer (Non removable) | Li-Ion: lithium-ion (Removable) |
| Battery capacity | 5000 mAh | 2100 mAh |
| Charger, watts | 33W Wired fast charging | Wired charging |
| Inductive / wireless charging | Not supported | feature not registered |
| Talk time autonomy | feature not registered | feature not registered |
| Standby | feature not registered | feature not registered |
➕ Other features | ||
| Redmi Note 12 (China 256GB) | Galaxy S3 Slim Duos (SM-G3812B) | |
| Call control | Voice dialing, Voice recorder, Voice commands | 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, White, Blue | • Colors: Black, White • Samsung TouchWiz UX • Java framework |
☢️ Radiation rate | ||
| Redmi Note 12 (China 256GB) | Galaxy S3 Slim Duos (SM-G3812B) | |
| SAR 1.6W/kg (USA, Mexico, etc.) | feature not registered | 0.61W/kg (head), 1.13W/kg (body) |
| SAR 2W/kg (Europe, UK, etc.) | feature not registered | 0.553W/kg (head), 0.395W/kg (body) |