Xiaomi Redmi K30 5G (128GB/6GB) vs Samsung Galaxy A21s (SM-A217F/DSN 64GB/6GB)
Side by side comparison between Xiaomi Redmi K30 5G vs Samsung Galaxy A21s phones, differences, pros, cons and full specifications. What's the better?
,
6.67"
IPS
IPS
1080x2400
64
MP
MP
20mp
6GB
RAM
RAM
Octa-core
4500
mAh
mAh
(Non removable)
vs
6.5"
PLS
PLS
720x1600
48
MP
MP
13mp
6GB
RAM
RAM
Octa-core
5000
mAh
mAh
(Non removable)
What's the better phone? Xiaomi Redmi K30 5G (128GB/6GB)
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 
4 Advantages | 24 Common items in both devices |
| 6GB LPDDR4X |
| Until 512GB microSD, microSDXC |
| 16 million |
| Only digital zoom |
| PDAF: phase detection autofocus |
| EIS: Digital stabilization |
| HDR photo on both cameras |
| +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 K30 5G (128GB/6GB) | Galaxy A21s (SM-A217F/DSN 64GB/6GB) | |
| Model | Redmi K30 5G (128GB/6GB) | Galaxy A21s (SM-A217F/DSN 64GB/6GB) |
| Other model names | Xiaomi Redmi K30 5G (128GB + 6GB RAM), M2001G7AE, M2001G7AC | Galaxy A21s SM-A217F/Dual-Sim NFC (64GB + 6GB RAM) |
| Country or region available |  (Global, International) |  Hong Kong |
| Brand | Xiaomi | Samsung |
| Release date | 1/1/2020 | 6/2/2020, Announced: 5/15/2020 |
| Depth | 8.79 millimeters (0.35 inches) | 8.9 millimeters (0.35 inches) |
| Size (width x height) | 76.6 x 165.3 millimeters (3.02 x 6.51 in) | 75.3 x 163.7 millimeters (2.96 x 6.44 in) |
| Weight | 208 grams (7.28 ounces) | 192 grams (6.72 ounces) |
| Build, materials | Aluminum frame, glass front/back | Plastic body, glass front |
| Protection against water and others | Not supported | Not supported |
📲 Display | ||
| Redmi K30 5G (128GB/6GB) | Galaxy A21s (SM-A217F/DSN 64GB/6GB) | |
| Display type | TFT IPS LCD | TFT PLS |
| Screen size | 6.67" inches | 6.5" inches |
| Screen-to-body ratio | ~84.8% (screen-to-body ratio) | ~82.8% (screen-to-body ratio) |
| Display resolution | 1080x2400 pixels (20:9) | 720x1600 pixels (20:9) |
| Touchscreen | Capacitive Multitouch | Capacitive Multitouch |
| Pixel density (dot pitch) | 395 PPI | 270 PPI |
| Colors | 16 million | 16 million |
| Scratch-resistant glass | Gorilla Glass 5 | Not supported |
| Refresh rate | 120Hz | 60Hz |
| Display features | HDR10 | Not supported |
🤖 Operating System | ||
| Redmi K30 5G (128GB/6GB) | Galaxy A21s (SM-A217F/DSN 64GB/6GB) | |
| System version | Android 10 | Android 10 |
| Firmware update | Android 11 | Android 12 |
| User Interface | feature not registered | One UI 2.0 / 3.1 / 4.1 |
⚙️ Processor | ||
| Redmi K30 5G (128GB/6GB) | Galaxy A21s (SM-A217F/DSN 64GB/6GB) | |
| Chipset | 64bit: Qualcomm Snapdragon 765G (SM7250-AB) (7nm) | 64bit: Samsung Exynos 850 (8nm) |
| CPU | Octa-core, 3 processors: 1x 2.4GHz Kryo 475 Prime (Single-core) 1x 2.2GHz Kryo 475 Gold (Single-core) 6x 1.8GHz Kryo 475 Silver (Hexa-core) | Octa-core, 1 processor: 8x 2GHz ARM Cortex-A55 (Octa-core) |
| GPU graphical controller | Qualcomm Adreno 620 (625MHz) | ARM Mali-G52 MP1 |
| Performance (benchmark) | feature not registered | feature not registered |
💽 Memory and storage | ||
| Redmi K30 5G (128GB/6GB) | Galaxy A21s (SM-A217F/DSN 64GB/6GB) | |
| RAM memory | 6GB LPDDR4X | 6GB LPDDR4X |
| Internal storage | 128GB (107GB available) UFS 2.1 | 64GB (48GB available) eMMC 5.1 |
| External storage | Until 512GB microSD, microSDXC (hybrid slot/shares the same SIM-2 slot) | Until 512GB microSD, microSDXC (dedicated slot) |
📶 Mobile networks | ||
| Redmi K30 5G (128GB/6GB) | Galaxy A21s (SM-A217F/DSN 64GB/6GB) | |
| Dual-SIM | Dual-SIM Standby - Call active on one sim card (hybrid slot/shares the same microSD 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 | 2000/150 Mbps | 300/150 Mbps |
| Network technology | 2G, 3G, 4G, 5G | 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 TD-SCDMA 1900/2000 UMTS 850/900/2100 | UMTS 850/900/1900/2100 |
| Primary 4G network | LTE Cat15/13 (Bands 1, 3, 5, 8) TD-LTE (Bands 34, 38, 39, 40, 41) VoLTE | LTE Cat7/13 (1, 2, 3, 5, 7, 8, 20, 28) TD-LTE (38, 40, 41) |
| Primary 5G network | SA/NSA Sub6 (Bands 41, 78) | 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, SA/NSA | 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 850/900/1900/2100 |
| Secondary 4G network | Not supported | LTE Cat7/13 (1, 2, 3, 5, 7, 8, 20, 28) TD-LTE (38, 40, 41) |
| Secondary data network | GPRS, EDGE | GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A |
📷 Camera | ||
| Redmi K30 5G (128GB/6GB) | Galaxy A21s (SM-A217F/DSN 64GB/6GB) | |
| Back camera (main camera) | (quad camera) 64 megapixels 8MP ultrawide f/2.213mm1/4.0"1.12µm 5MP macro f/2.41/5.0"1.75µm 2MP depth f/2.4 | (quad camera) 48 megapixels 8MP ultrawide f/2.21/4"1.12µm123° 2MP macro f/2.4 2MP depth f/2.4 |
| Main camera resolution | 10120x6328 pixels | 8000x6000 pixels |
| Video recording (primary) | 4K UHD (3840x2160) 30 fps | Full HD (1920x1080) 30 fps |
| Flash | Dual-LED flash | LED flash |
| Focal aperture | f/1.9 (aperture) | f/2.0 (aperture) |
| Focal length | 26mm lens | 26mm lens |
| Sensor size | 1/1.72" inches | 1/2" inches |
| Pixel size | 0.8µm pixel | 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 | Not 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 K30 5G (128GB/6GB) | Galaxy A21s (SM-A217F/DSN 64GB/6GB) | |
| Front camera (secondary) | (dual front camera) 20 megapixels 2MP depth f/2.41/5"1.75µm | 13 megapixels |
| Front camera resolution | 5184x3840 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/2.2 (aperture) |
| Focal length | 27mm lens | feature not registered |
| Sensor size | 1/3.4" inches | 1/3.1" inches |
| Pixel size | 0.8µm pixel | 1.12µm pixel |
🔉 Sound and multimedia | ||
| Redmi K30 5G (128GB/6GB) | Galaxy A21s (SM-A217F/DSN 64GB/6GB) | |
| Loudspeaker | Supported | Mono sound (not stereo) |
| Active noise cancellation | 2 microphones or more | 2 microphones or more |
| Radio | FM (RDS) | 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 K30 5G (128GB/6GB) | Galaxy A21s (SM-A217F/DSN 64GB/6GB) | |
| USB | USB 2.0 Type-C, USB OTG On-The-Go | USB 2.0 Type-C reversible connector |
| Audio output | 3.5mm jack | 3.5mm jack |
| TV output | Not supported | 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, QZSS | A-GPS, GeoTagging, GLONASS, GALILEO, BeiDou |
| NFC | Supported | Supported |
| Infrared port | Supported | Not supported |
🧭 Sensors | ||
| Redmi K30 5G (128GB/6GB) | Galaxy A21s (SM-A217F/DSN 64GB/6GB) | |
| Sensors | Accelerometer Ambient light sensor Compass Face unlock Fingerprint sensor (side-mounted) Gyroscope Hall effect Proximity sensor | Accelerometer Compass Face unlock Fingerprint sensor (rear-mounted) Gyroscope Proximity sensor Virtual ambient light sensor |
| Vibrating alert | Supported | Supported |
🔋 Battery | ||
| Redmi K30 5G (128GB/6GB) | Galaxy A21s (SM-A217F/DSN 64GB/6GB) | |
| Battery type | LiPo: li-ion polymer (Non removable) | LiPo: li-ion polymer (Non removable) |
| Battery capacity | 4500 mAh | 5000 mAh |
| Charger, watts | 30W Wired fast charging | 15W (9V/1.67A) 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 K30 5G (128GB/6GB) | Galaxy A21s (SM-A217F/DSN 64GB/6GB) | |
| Call control | Voice dialing, Voice recorder, Voice commands | 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: Blue, Red, Purple, White • Display: 20:9, HDR10+, 120Hz • MIUI 11 • Game Turbo 2.0 • 24-bit/192kHz audio | • Colors: Black, White, Blue, Red |
☢️ Radiation rate | ||
| Redmi K30 5G (128GB/6GB) | Galaxy A21s (SM-A217F/DSN 64GB/6GB) | |
| SAR 1.6W/kg (USA, Mexico, etc.) | feature not registered | feature not registered |
| SAR 2W/kg (Europe, UK, etc.) | feature not registered | 0.422W/kg (head), 1.544W/kg (body) |