Xiaomi Redmi Note 11 4G (128GB/4GB) vs Samsung Galaxy A51 (SM-A515F/DSN)
Side by side comparison between Xiaomi Redmi Note 11 4G vs Samsung Galaxy A51 phones, differences, pros, cons and full specifications. What's the better?
,
6.5"
IPS
IPS
1080x2400
50
MP
MP
8mp
4GB
RAM
RAM
Octa-core
5000
mAh
mAh
(Non removable)
vs
6.5"
AMOLED
AMOLED
1080x2400
48
MP
MP
32mp
6GB
RAM
RAM
Octa-core
4000
mAh
mAh
(Non removable)
What's the better phone? Samsung Galaxy A51 (SM-A515F/DSN)
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!
7 Advantages 
16 Advantages | 28 Common items in both devices |
| 128GB (101GB available) / 128GB (107GB available) |
| eMMC 5.1 |
| Until 1TB microSD, microSDXC |
| Plastic body, glass front |
| 16 million |
| 1080x2400 pixels |
| 405 PPI |
| +21 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 11 4G (128GB/4GB) | Galaxy A51 (SM-A515F/DSN) | |
| Model | Redmi Note 11 4G (128GB/4GB) | Galaxy A51 (SM-A515F/DSN) |
| Other model names | 红米Note 11 4G (21121119SC) | Samsung Galaxy A51 SM-A515F/DSN |
| Country or region available |  China |      (Europe), (Global, International), United Arab Emirates, Pakistan, Taiwan |
| Brand | Xiaomi | Samsung |
| Release date | 12/1/2021, Announced: 11/25/2021 | 12/16/2019, Announced: 12/12/2019 |
| Depth | 8.9 millimeters (0.35 inches) | 7.9 millimeters (0.31 inches) |
| Size (width x height) | 75.53 x 161.95 millimeters (2.97 x 6.38 in) | 73.6 x 158.5 millimeters (2.9 x 6.24 in) |
| Weight | 181 grams (6.34 ounces) | 172 grams (6.02 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 11 4G (128GB/4GB) | Galaxy A51 (SM-A515F/DSN) | |
| Display type | TFT IPS LCD | Super AMOLED |
| Screen size | 6.5" inches | 6.5" inches |
| Screen-to-body ratio | ~83.4% (screen-to-body ratio) | ~87.4% (screen-to-body ratio) |
| Display resolution | 1080x2400 pixels (20:9) | 1080x2400 pixels (20:9) |
| Touchscreen | Capacitive Multitouch | Capacitive Multitouch |
| Pixel density (dot pitch) | 405 PPI | 405 PPI |
| Colors | 16 million | 16 million |
| Scratch-resistant glass | Not supported | Gorilla Glass 3 |
| Refresh rate | 90Hz | 60Hz |
| Display features | Not supported | Always-On Display |
🤖 Operating System | ||
| Redmi Note 11 4G (128GB/4GB) | Galaxy A51 (SM-A515F/DSN) | |
| System version | Android 11 | Android 10 |
| Firmware update | feature not registered | Android 13 |
| User Interface | MIUI 12.5 | One UI 2.5 / 3.1 / 4.1 / 5.0 |
⚙️ Processor | ||
| Redmi Note 11 4G (128GB/4GB) | Galaxy A51 (SM-A515F/DSN) | |
| Chipset | 64bit: MediaTek Helio G88 (12nm) | 64bit: Samsung Exynos 9611 (10nm) |
| CPU | Octa-core, 2 processors: 2x 2GHz ARM Cortex-A75 (Dual-core) 6x 1.8GHz ARM Cortex-A55 (Hexa-core) | Octa-core, 2 processors: 4x 2.3GHz ARM Cortex-A73 (Quad-core) 4x 1.7GHz ARM Cortex-A53 (Quad-core) |
| GPU graphical controller | ARM Mali-G52 MC2 (1GHz) | ARM Mali-G72 MP3 (850MHz) |
| Performance (benchmark) | feature not registered | feature not registered |
💽 Memory and storage | ||
| Redmi Note 11 4G (128GB/4GB) | Galaxy A51 (SM-A515F/DSN) | |
| RAM memory | 4GB LPDDR4X | 6GB LPDDR4X |
| Internal storage | 128GB (101GB available) eMMC 5.1 | 128GB (107GB available) eMMC 5.1 |
| External storage | Until 1TB microSD, microSDXC (dedicated slot) | Until 1TB microSD, microSDXC (dedicated slot) |
📶 Mobile networks | ||
| Redmi Note 11 4G (128GB/4GB) | Galaxy A51 (SM-A515F/DSN) | |
| 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) nano-SIM (4FF) | 2 slots (Dual-SIM) nano-SIM (4FF) |
| Maximum Download / Upload | 400/150 Mbps | 600/150 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, GSM 850/900/1800/1900 | GSM 850/900/1800/1900 |
| Primary 3G network | CDMA2000 1xEV-DO UMTS 850/900/2100 | UMTS 850/900/1700/1900/2100 |
| Primary 4G network | LTE Cat13 (1, 3, 5, 7, 8) TD-LTE (34, 38, 39, 40, 41) VoLTE | LTE Cat12/13 (1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 20, 26, 28, 66) TD-LTE (38, 40, 41) VoLTE |
| Primary 5G network | Not supported | 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 | 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 | UMTS 850/900/2100 | Not supported |
| Secondary 4G network | LTE Cat13 (1, 3, 5, 7, 8) TD-LTE (34, 38, 39, 40, 41) VoLTE | Not supported |
| Secondary data network | GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A | GPRS, EDGE |
📷 Camera | ||
| Redmi Note 11 4G (128GB/4GB) | Galaxy A51 (SM-A515F/DSN) | |
| Back camera (main camera) | (triple camera) 50 megapixels 8MP ultrawide f/2.2120° 2MP macro f/2.4 | (quad camera) 48 megapixels 12MP ultrawide f/2.213mm1.12µm 5MP telephoto f/2.440mm 5MP depth f/2.21/5.0"1.12µm |
| Main camera resolution | 8160x6120 pixels | 8000x6000 pixels |
| Video recording (primary) | Full HD (1920x1080) 30 fps | 4K UHD (3840x2160) 30 fps |
| Flash | LED flash | LED flash |
| Focal aperture | f/1.8 (aperture) | f/2.0 (aperture) |
| Focal length | 26mm lens | 26mm lens |
| Sensor size | feature not registered | 1/2" inches |
| Pixel size | feature not registered | 0.8µm pixel |
| Autofocus | PDAF: phase detection 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 | Supported | Not supported |
| HDR | HDR photo on both cameras | HDR photo on both cameras |
| Camera extras | feature not registered | feature not registered |
📸 Front camera | ||
| Redmi Note 11 4G (128GB/4GB) | Galaxy A51 (SM-A515F/DSN) | |
| Front camera (secondary) | 8 megapixels | 32 megapixels |
| Front camera resolution | 3264x2448 pixels | 6528x4896 pixels |
| Video recording (secondary) | Full HD (1920x1080) | 4K UHD (3840x2160) |
| Front flash | Not supported | Not supported |
| Focal aperture | f/2.0 (aperture) | f/2.2 (aperture) |
| Focal length | feature not registered | 26mm lens |
| Sensor size | 1/4" inches | 1/2.8" inches |
| Pixel size | 1.12µm pixel | 0.8µm pixel |
🔉 Sound and multimedia | ||
| Redmi Note 11 4G (128GB/4GB) | Galaxy A51 (SM-A515F/DSN) | |
| Loudspeaker | Stereo sound with dual speakers 24-bit/192kHz | Supported |
| Active noise cancellation | 2 microphones or more | 2 microphones or more |
| Radio | Not supported | FM (RDS) |
| TV | Not supported | Not supported |
| Video formats | MP4, H.265, 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 | ||
| Redmi Note 11 4G (128GB/4GB) | Galaxy A51 (SM-A515F/DSN) | |
| USB | USB 2.0 Type-C, USB OTG On-The-Go | USB 2.0 Type-C, USB OTG On-The-Go |
| Audio output | 3.5mm jack | 3.5mm jack |
| TV output | USB Type-C (reversible) | Not supported |
| Bluetooth | 5.1 + A2DP/LE | 5.0 + A2DP/LE |
| WiFi | 802.11 a/b/g/n/ac [wifi5] (2.4GHz, 5GHz) + MIMO WiFi Direct, hotspot | 802.11 a/b/g/n/ac [wifi5] (2.4GHz, 5GHz) + MIMO WiFi Direct, hotspot |
| DLNA | Not supported | Not supported |
| GPS | A-GPS, GeoTagging, GLONASS, GALILEO, BeiDou | A-GPS, GeoTagging, GLONASS, GALILEO, BeiDou |
| NFC | Not supported | Supported |
| Infrared port | Supported | Not supported |
🧭 Sensors | ||
| Redmi Note 11 4G (128GB/4GB) | Galaxy A51 (SM-A515F/DSN) | |
| Sensors | Accelerometer Ambient light sensor Compass Face unlock Fingerprint sensor (side-mounted) Proximity sensor | Accelerometer Ambient light sensor ANT+ Compass Face unlock Fingerprint sensor (under display) Gyroscope Hall effect Virtual proximity sensor |
| Vibrating alert | Supported | Supported |
🔋 Battery | ||
| Redmi Note 11 4G (128GB/4GB) | Galaxy A51 (SM-A515F/DSN) | |
| Battery type | LiPo: li-ion polymer (Non removable) | LiPo: li-ion polymer (Non removable) |
| Battery capacity | 5000 mAh | 4000 mAh |
| Charger, watts | 18W Wired fast charging 9W Reverse charging by cable | 15W Wired fast charging |
| Inductive / wireless charging | Not supported | Not supported |
| Talk time autonomy | feature not registered | feature not registered |
| Standby | feature not registered | feature not registered |
➕ Other features | ||
| Redmi Note 11 4G (128GB/4GB) | Galaxy A51 (SM-A515F/DSN) | |
| 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: Carbon Gray, Pebble White, Sea Blue | • Colors: Prism, Crush Black, White, Blue, Pink |
☢️ Radiation rate | ||
| Redmi Note 11 4G (128GB/4GB) | Galaxy A51 (SM-A515F/DSN) | |
| SAR 1.6W/kg (USA, Mexico, etc.) | feature not registered | feature not registered |
| SAR 2W/kg (Europe, UK, etc.) | feature not registered | 0.369W/kg (head), 1.59W/kg (body) |