Xiaomi Redmi 9A (128GB/6GB) vs Samsung W21 5G
Side by side comparison between Xiaomi Redmi 9A vs Samsung W21 5G phones, differences, pros, cons and full specifications. What's the better?
,
6.53"
IPS
IPS
720x1600
13
MP
MP
5mp
6GB
RAM
RAM
Octa-core
5000
mAh
mAh
(Non removable)
vs
7.6"
AMOLED
AMOLED
1768x2208
12.2
MP
MP
10mp
12GB
RAM
RAM
Octa-core
4500
mAh
mAh
(Non removable)
What's the better phone? Samsung W21 5G
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!
5 Advantages 
36 Advantages | 19 Common items in both devices |
| 16 million |
| LED flash |
| PDAF: phase detection autofocus |
| HDR photo on both cameras / HDR photo/video on both cameras |
| Capacitive |
| Multitouch |
| Accelerometer |
| +12 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 9A (128GB/6GB) | Samsung W21 5G | |
| Model | Redmi 9A (128GB/6GB) | W21 5G |
| Other model names | Xiaomi Redmi 9A M2006C3LG, M2006C3LI | 三星W21 5G SM-W2021 (China Telecom edition) |
| Country or region available |  China | China |
| Brand | Xiaomi | Samsung |
| Release date | 7/7/2020, Announced: 6/30/2020 | 11/1/2020 |
| Depth | 9 millimeters (0.35 inches) | 6.9 millimeters (0.27 inches) |
| Size (width x height) | 77.07 x 164.9 millimeters (3.03 x 6.49 in) | 128.2 x 159.2 millimeters (5.05 x 6.27 in) |
| Weight | 194 grams (6.79 ounces) | 282 grams (9.87 ounces) |
| Build, materials | Plastic body, glass front | Aluminum frame, flexible plastic screen, glass back |
| Protection against water and others | Not supported | Not supported |
📲 Display | ||
| Redmi 9A (128GB/6GB) | Samsung W21 5G | |
| Display type | TFT IPS LCD | Flexible Super AMOLED |
| Screen size | 6.53" inches | 7.6" inches |
| Screen-to-body ratio | ~81% (screen-to-body ratio) | ~89.1% (screen-to-body ratio) |
| Display resolution | 720x1600 pixels (20:9) | 1768x2208 pixels |
| Touchscreen | Capacitive Multitouch | Capacitive Multitouch |
| Pixel density (dot pitch) | 269 PPI | 372 PPI |
| Colors | 16 million | 16 million |
| Scratch-resistant glass | Not supported | Gorilla Glass Victus |
| Refresh rate | 60Hz | 120Hz |
| Display features | 400nits[typ] | HDR10+ Extra display: Super AMOLED 6.23" (816x2260) Gorilla Glass Victus |
🤖 Operating System | ||
| Redmi 9A (128GB/6GB) | Samsung W21 5G | |
| System version | Android 10 | Android 10 |
| Firmware update | feature not registered | Android 13 |
| User Interface | feature not registered | One UI 3.1 / 4.1 / 5.0 |
⚙️ Processor | ||
| Redmi 9A (128GB/6GB) | Samsung W21 5G | |
| Chipset | 64bit: MediaTek Helio G25 (MT6762G) (12nm) | 64bit: Qualcomm Snapdragon 865+ (SM8250-AB) (7nm) |
| CPU | Octa-core, 2 processors: 4x 2GHz ARM Cortex-A53 (Quad-core) 4x 1.5GHz ARM Cortex-A53 (Quad-core) | Octa-core, 3 processors: 1x 3.09GHz Kryo 585 (Single-core) 3x 2.42GHz Kryo 585 (Triple-core) 4x 1.8GHz Kryo 585 (Quad-core) |
| GPU graphical controller | PowerVR GE8320 MP2 (650MHz) | Qualcomm Adreno 650 (250-646MHz) |
| Performance (benchmark) | AnTuTu: 84175 (v8) | feature not registered |
💽 Memory and storage | ||
| Redmi 9A (128GB/6GB) | Samsung W21 5G | |
| RAM memory | 6GB LPDDR4X | 12GB LPDDR5 |
| Internal storage | 128GB (106GB available) eMMC 5.1 | 512GB (455GB available) UFS 3.1 |
| External storage | Until 512GB microSD, microSDXC (dedicated slot) | Not supported |
📶 Mobile networks | ||
| Redmi 9A (128GB/6GB) | Samsung W21 5G | |
| Dual-SIM | Dual-SIM Standby - Call active on one sim card (dedicated slot) | Dual-SIM Standby - Call active on one sim card |
| SIM card | 2 slots (Dual-SIM) nano-SIM (4FF) | 2 slots (Dual-SIM) nano-SIM (4FF) |
| Maximum Download / Upload | 300/50 Mbps | 2000/1024 Mbps |
| Network technology | 2G, 3G, 4G | 2G, 3G, 4G, 5G |
| 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 850/900/1700/1900/2100 | UMTS 850/900/1900/2100 |
| Primary 4G network | LTE Cat6 (1, 2 ,3, 4, 5, 7, 8, 20, 28) TD-LTE (38, 40, 41) VoLTE | LTE Cat20 (1, 2, 3, 4, 5, 7, 8, 12, 13, 18, 19, 20, 25, 26, 28) TD-LTE (34, 38, 39, 40, 41) VoLTE |
| Primary 5G network | Not supported | Sub6 (1, 28, 41, 78, 79) |
| Primary data network | GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A | GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A, SA/NSA |
| 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 Cat20 (1, 2, 3, 4, 5, 7, 8, 12, 13, 18, 19, 20, 25, 26, 28) TD-LTE (34, 38, 39, 40, 41) VoLTE |
| Secondary data network | GPRS, EDGE | GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A, SA/NSA |
📷 Camera | ||
| Redmi 9A (128GB/6GB) | Samsung W21 5G | |
| Back camera (main camera) | 13 megapixels | (triple camera) 12.2 megapixels 12MP telephoto f/2.452mm1/3.6"1.0µmPDAFOIS2x-optical-zoom 12MP ultrawide f/2.2123°12mm1.12µm |
| Main camera resolution | 4128x3096 pixels | 4032x3024 pixels |
| Video recording (primary) | Full HD (1920x1080) 30 fps | 4K UHD (3840x2160) 60 fps |
| Flash | LED flash | LED flash |
| Focal aperture | f/2.2 (aperture) | f/1.8 (aperture) |
| Focal length | 28mm (lens) | 26mm (lens) |
| Sensor size | feature not registered | 1/1.76" inches |
| Pixel size | 1µm pixel | 1.8µm pixel |
| Autofocus | PDAF: phase detection autofocus | PDAF: phase detection autofocus |
| Touch focus | Supported | Supported |
| Image stabilization | EIS: Digital stabilization | OIS: Optical stabilization |
| Zoom | Only digital zoom | Digital and optical zoom |
| Face/smile detection | Face detection, Smile detection | Face detection, Smile detection |
| BSI sensor | Not supported | Supported |
| HDR | HDR photo on both cameras | HDR photo/video on both cameras |
| Camera extras | feature not registered | Cover camera: 10MP (f/2.2) 4K@30/60fps 1080p@60fps 1080p@240fps (slow motion) 720p@960fps (slow motion) |
📸 Front camera | ||
| Redmi 9A (128GB/6GB) | Samsung W21 5G | |
| Front camera (secondary) | 5 megapixels | 10 megapixels |
| Front camera resolution | 2560x1920 pixels | 3872x2592 pixels |
| Video recording (secondary) | Full HD (1920x1080) | 4K UHD (3840x2160) |
| Front flash | Not supported | Not supported |
| Focal aperture | f/2.2 (aperture) | f/2.2 (aperture) |
| Focal length | feature not registered | 26mm (lens) |
| Sensor size | feature not registered | 1/3" inches |
| Pixel size | 1.12µm pixel | 1.22µm pixel |
🔉 Sound and multimedia | ||
| Redmi 9A (128GB/6GB) | Samsung W21 5G | |
| Loudspeaker | Supported | Stereo sound 32-bit/384kHz Dolby Atmos Tuned by AKG |
| Active noise cancellation | 2 microphones or more | 2 microphones or more |
| Radio | FM | Not supported |
| 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 9A (128GB/6GB) | Samsung W21 5G | |
| USB | MicroUSB 2.0, USB OTG On-The-Go | USB 3.2 Type-C, USB OTG On-The-Go |
| Audio output | 3.5mm jack | Type-C reversible connector |
| TV output | Micro-B USB SlimPort | USB Type-C (reversible) |
| Bluetooth | 5.0 + A2DP/LE | 5.0 + A2DP/LE |
| WiFi | 802.11 b/g/n [wifi4] (2.4GHz) WiFi Direct, hotspot | 802.11 a/b/g/n/ac/ax [wifi6] (2.4GHz, 5GHz) + MIMO WiFi Direct, hotspot |
| DLNA | Not supported | Supported |
| GPS | A-GPS, GeoTagging, GLONASS, BeiDou | A-GPS, GeoTagging, GLONASS, GALILEO, BeiDou |
| NFC | Not supported | Supported |
| Infrared port | Not supported | Not supported |
🧭 Sensors | ||
| Redmi 9A (128GB/6GB) | Samsung W21 5G | |
| Sensors | Accelerometer Ambient light sensor Face unlock 2D Proximity sensor | Accelerometer Ambient light sensor ANT+ Barometer Compass Face unlock 2D Fingerprint sensor (side-mounted) Gyroscope Hall effect Proximity sensor |
| Vibrating alert | Supported | Supported |
🔋 Battery | ||
| Redmi 9A (128GB/6GB) | Samsung W21 5G | |
| Battery type | LiPo: li-ion polymer (Non removable) | LiPo: li-ion polymer (Non removable) |
| Battery capacity | 5000 mAh | 4500 mAh |
| Charger, watts | 10W (5V/2A) Wired charging | 25W Wired fast charging Reverse charging by cable USB Power Delivery 3.0 |
| Inductive / wireless charging | Not supported | 11W Qi Wireless charging (Qi/WPC) 4.5W Reverse wireless charging |
| Talk time autonomy | feature not registered | 31 hours (1.3 days) |
| Standby | feature not registered | feature not registered |
➕ Other features | ||
| Redmi 9A (128GB/6GB) | Samsung W21 5G | |
| 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: Carbon Gray, Sky Blue, Ocean Green • MIUI 12 | • Colors: Gold • Bixby • Samsung Wireless DeX • Samsung Pay (MST, NFC) |
☢️ Radiation rate | ||
| Redmi 9A (128GB/6GB) | Samsung W21 5G | |
| SAR 1.6W/kg (USA, Mexico, etc.) | 0.9W/kg (head), 0.65W/kg (body) | feature not registered |
| SAR 2W/kg (Europe, UK, etc.) | 0.4W/kg (head), 1.19W/kg (body) | 0.859W/kg (head), 1.453W/kg (body) |