Xiaomi Redmi Note 7 (48MP 64GB/4GB) vs Samsung Galaxy A21 (SM-A215W)
Side by side comparison between Xiaomi Redmi Note 7 vs Samsung Galaxy A21 phones, differences, pros, cons and full specifications. What's the better?
,
6.3"
IPS
IPS
1080x2340
48
MP
MP
13mp
4GB
RAM
RAM
Octa-core
4000
mAh
mAh
(Non removable)
vs
6.5"
PLS
PLS
720x1600
16
MP
MP
13mp
3GB
RAM
RAM
Octa-core
4000
mAh
mAh
(Non removable)
What's the better phone? Xiaomi Redmi Note 7 (48MP 64GB/4GB)
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!
13 Advantages 
4 Advantages | 33 Common items in both devices |
| eMMC 5.1 |
| 8.1 millimeters (0.32 inches) |
| Plastic body, glass front/back / Plastic body, glass front |
| 60Hz |
| 16 million |
| Only digital zoom |
| PDAF: phase detection autofocus |
| +26 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 7 (48MP 64GB/4GB) | Galaxy A21 (SM-A215W) | |
| Model | Redmi Note 7 (48MP 64GB/4GB) | Galaxy A21 (SM-A215W) |
| Other model names | 红米Note 7 M1901F7E, M1901F7C, M1901F7G, Xiaomi Lavender | Galaxy A21 SM-A215WZKAXAC (Bell Mobility) |
| Country or region available |    (Europe), (Global, International), China |  Canada |
| Brand | Xiaomi | Samsung |
| Release date | 1/10/2019 | 6/26/2020 |
| Depth | 8.1 millimeters (0.32 inches) | 8.1 millimeters (0.32 inches) |
| Size (width x height) | 75.21 x 159.21 millimeters (2.96 x 6.27 in) | 76.7 x 167.8 millimeters (3.02 x 6.61 in) |
| Weight | 186 grams (6.51 ounces) | 193 grams (6.76 ounces) |
| Build, materials | Plastic body, glass front/back Back: Gorilla Glass 5 | Plastic body, glass front |
| Protection against water and others | Not supported | Not supported |
📲 Display | ||
| Redmi Note 7 (48MP 64GB/4GB) | Galaxy A21 (SM-A215W) | |
| Display type | TFT IPS LCD | TFT PLS |
| Screen size | 6.3" inches | 6.5" inches |
| Screen-to-body ratio | ~81.4% (screen-to-body ratio) | ~79.3% (screen-to-body ratio) |
| Display resolution | 1080x2340 pixels (19.5:9) | 720x1600 pixels (20:9) |
| Touchscreen | Capacitive Multitouch | Capacitive Multitouch |
| Pixel density (dot pitch) | 409 PPI | 270 PPI |
| Colors | 16 million | 16 million |
| Scratch-resistant glass | Gorilla Glass 5 | Not supported |
| Refresh rate | 60Hz | 60Hz |
| Display features | Not supported | Not supported |
🤖 Operating System | ||
| Redmi Note 7 (48MP 64GB/4GB) | Galaxy A21 (SM-A215W) | |
| System version | Android 9.0 Pie | Android 10 |
| Firmware update | Android 10 | feature not registered |
| User Interface | MIUI 10 / 11 / 12 | feature not registered |
⚙️ Processor | ||
| Redmi Note 7 (48MP 64GB/4GB) | Galaxy A21 (SM-A215W) | |
| Chipset | 64bit: Qualcomm Snapdragon 660 (SDM660) (14nm) | 64bit: MediaTek Helio P35 (MT6765) (12nm) |
| CPU | Octa-core, 2 processors: 4x 2.2GHz Kryo 260 Gold (Quad-core) 4x 1.8GHz Kryo 260 Silver (Quad-core) | Octa-core, 2 processors: 4x 2.3GHz ARM Cortex-A53 (Quad-core) 4x 1.8GHz ARM Cortex-A53 (Quad-core) |
| GPU graphical controller | Qualcomm Adreno 512 (650MHz) | PowerVR GE8320 MP2 (680MHz) |
| Performance (benchmark) | AnTuTu: 139075 (v7) Geekbench: 5411 (v4.4) GFXBench: 7.7fps (ES 3.1 onscreen) | feature not registered |
💽 Memory and storage | ||
| Redmi Note 7 (48MP 64GB/4GB) | Galaxy A21 (SM-A215W) | |
| RAM memory | 4GB LPDDR4X | 3GB LPDDR3 |
| Internal storage | 64GB (51GB available) eMMC 5.1 | 32GB (20GB available) eMMC 5.1 |
| External storage | Until 256GB microSD, microSDXC (hybrid slot/shares the same SIM-2 slot) | Until 512GB microSD, microSDXC (dedicated slot) |
📶 Mobile networks | ||
| Redmi Note 7 (48MP 64GB/4GB) | Galaxy A21 (SM-A215W) | |
| Dual-SIM | Dual-SIM Standby - Call active on one sim card (hybrid slot/shares the same microSD slot) | Not supported |
| SIM card | 2 slots (Dual-SIM) nano-SIM (4FF) | 1 slot (Single-SIM) nano-SIM (4FF) |
| Maximum Download / Upload | 450/50 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 800/1900, GSM 850/900/1800/1900 | GSM 850/900/1800/1900 |
| Primary 3G network | CDMA2000 1xEV-DO TD-SCDMA 1900/2000 UMTS 850/900/1900/2100 | UMTS 850/900/1700/1900/2100 |
| Primary 4G network | LTE Cat9 (1, 3, 5, 7, 8) TD-LTE (34, 38, 39, 40, 41) VoLTE | LTE Cat4 (1, 2, 3, 4, 5, 7, 12, 13, 17, 20, 66, 71) 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, 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 | Not supported |
| Secondary 3G network | UMTS 850/900/1900/2100 | Not supported |
| Secondary 4G network | LTE Cat9 (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 | Not supported |
📷 Camera | ||
| Redmi Note 7 (48MP 64GB/4GB) | Galaxy A21 (SM-A215W) | |
| Back camera (main camera) | (dual camera) 48 megapixels 5MP depth f/2.4 | (quad camera) 16 megapixels 8MP ultrawide f/2.21/4.0"1.12µm 2MP macro f/2.4 2MP depth f/2.4 |
| Main camera resolution | 8000x6000 pixels | 4608x3456 pixels |
| Video recording (primary) | Full HD (1920x1080) 60 fps | Full HD (1920x1080) 30 fps |
| Flash | Dual-LED flash | LED flash |
| Focal aperture | f/1.8 (aperture) | f/1.8 (aperture) |
| Focal length | feature not registered | feature not registered |
| Sensor size | 1/2" inches | 1/3.06" inches |
| Pixel size | 0.8µm pixel | 1µm 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 | Not supported | Not supported |
| HDR | HDR photo on both cameras | HDR photo on both cameras |
| Camera extras | 1080p@30/60fps 1080p@120fps (slow motion) | feature not registered |
📸 Front camera | ||
| Redmi Note 7 (48MP 64GB/4GB) | Galaxy A21 (SM-A215W) | |
| Front camera (secondary) | 13 megapixels | 13 megapixels |
| Front camera resolution | 4128x3096 pixels | 4128x3096 pixels |
| Video recording (secondary) | Full HD (1920x1080) | Full HD (1920x1080) |
| Front flash | Not supported | Not supported |
| Focal aperture | f/2.2 (aperture) | f/2.0 (aperture) |
| Focal length | feature not registered | feature not registered |
| Sensor size | feature not registered | feature not registered |
| Pixel size | 1.25µm pixel | 1.12µm pixel |
🔉 Sound and multimedia | ||
| Redmi Note 7 (48MP 64GB/4GB) | Galaxy A21 (SM-A215W) | |
| Loudspeaker | Mono sound (not stereo) | Supported |
| Active noise cancellation | 2 microphones or more | 2 microphones or more |
| Radio | FM | FM |
| 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 7 (48MP 64GB/4GB) | Galaxy A21 (SM-A215W) | |
| USB | USB 2.0 Type-C reversible connector | USB 2.0 Type-C reversible connector |
| Audio output | 3.5mm jack | 3.5mm jack |
| TV output | Not supported | Not supported |
| Bluetooth | 5.0 + 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, BeiDou | A-GPS, GeoTagging, GLONASS |
| NFC | Not supported | Supported |
| Infrared port | Supported | Not supported |
🧭 Sensors | ||
| Redmi Note 7 (48MP 64GB/4GB) | Galaxy A21 (SM-A215W) | |
| Sensors | Accelerometer Ambient light sensor Compass Face unlock Fingerprint sensor (rear-mounted) Gyroscope Proximity sensor | Accelerometer Ambient light sensor Compass Face unlock Fingerprint sensor (rear-mounted) Gyroscope Proximity sensor |
| Vibrating alert | Supported | Supported |
🔋 Battery | ||
| Redmi Note 7 (48MP 64GB/4GB) | Galaxy A21 (SM-A215W) | |
| Battery type | LiPo: li-ion polymer (Non removable) | LiPo: li-ion polymer (Non removable) |
| Battery capacity | 4000 mAh | 4000 mAh |
| Charger, watts | 18W Wired fast charging Quick Charge 4 | 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 7 (48MP 64GB/4GB) | Galaxy A21 (SM-A215W) | |
| 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: Space black, Nebula red, Neptune blue | • Colors: Black • One UI 2.0 |
☢️ Radiation rate | ||
| Redmi Note 7 (48MP 64GB/4GB) | Galaxy A21 (SM-A215W) | |
| SAR 1.6W/kg (USA, Mexico, etc.) | 1.15W/kg (head), 1.17W/kg (body) | 0.6W/kg (head), 1.27W/kg (body) |
| SAR 2W/kg (Europe, UK, etc.) | 0.59W/kg (head), 1.27W/kg (body) | feature not registered |