Xiaomi Redmi 9 (128GB/4GB) vs Samsung Galaxy A20 (SM-A205U)
Side by side comparison between Xiaomi Redmi 9 vs Samsung Galaxy A20 phones, differences, pros, cons and full specifications. What's the better?
,
6.53"
IPS
IPS
1080x2340
13
MP
MP
8mp
4GB
RAM
RAM
Octa-core
5020
mAh
mAh
(Non removable)
vs
6.4"
AMOLED
AMOLED
720x1560
13
MP
MP
8mp
3GB
RAM
RAM
Octa-core
4000
mAh
mAh
(Non removable)
What's the better phone? Xiaomi Redmi 9 (128GB/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!
14 Advantages 
6 Advantages | 33 Common items in both devices |
| eMMC 5.1 |
| Until 512GB microSD, microSDXC / Until 1TB microSD, microSDXC |
| Plastic body, glass front |
| 60Hz |
| 16 million |
| LED flash |
| Only digital zoom |
| +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 9 (128GB/4GB) | Galaxy A20 (SM-A205U) | |
| Model | Redmi 9 (128GB/4GB) | Galaxy A20 (SM-A205U) |
| Other model names | Xiaomi Redmi 9 M2004J19C | Galaxy A20 A205U NFC (Sprint, T-Mobile, Verizon, USCellular) |
| Country or region available |  China |  USA |
| Brand | Xiaomi | Samsung |
| Release date | 6/10/2020 | 4/5/2019, Announced: 3/19/2019 |
| Depth | 9.1 millimeters (0.36 inches) | 7.8 millimeters (0.31 inches) |
| Size (width x height) | 77.01 x 163.32 millimeters (3.03 x 6.43 in) | 74.7 x 158.4 millimeters (2.94 x 6.24 in) |
| Weight | 198 grams (6.93 ounces) | 169 grams (5.92 ounces) |
| Build, materials | Plastic body, glass front | Plastic body, glass front |
| Protection against water and others | Not supported | Not supported |
📲 Display | ||
| Redmi 9 (128GB/4GB) | Galaxy A20 (SM-A205U) | |
| Display type | TFT IPS LCD | Super AMOLED |
| Screen size | 6.53" inches | 6.4" inches |
| Screen-to-body ratio | ~83.2% (screen-to-body ratio) | ~85% (screen-to-body ratio) |
| Display resolution | 1080x2340 pixels (19.5:9) | 720x1560 pixels (19.5:9) |
| Touchscreen | Capacitive Multitouch | Capacitive Multitouch |
| Pixel density (dot pitch) | 395 PPI | 268 PPI |
| Colors | 16 million | 16 million |
| Scratch-resistant glass | Gorilla Glass 3 | Not supported |
| Refresh rate | 60Hz | 60Hz |
| Display features | 400nits[typ] | Not supported |
🤖 Operating System | ||
| Redmi 9 (128GB/4GB) | Galaxy A20 (SM-A205U) | |
| System version | Android 10 | Android 9.0 Pie |
| Firmware update | Android 11 | Android 11 |
| User Interface | MIUI 12 | One UI 2.5 / 3.1 |
⚙️ Processor | ||
| Redmi 9 (128GB/4GB) | Galaxy A20 (SM-A205U) | |
| Chipset | 64bit: MediaTek Helio G80 (MT6769V/CU) (12nm) | 64bit: Samsung Exynos 7884 (14nm) |
| CPU | Octa-core, 2 processors: 2x 2GHz ARM Cortex-A75 (Dual-core) 6x 1.8GHz ARM Cortex-A55 (Hexa-core) | Octa-core, 2 processors: 2x 1.6GHz ARM Cortex-A73 (Dual-core) 6x 1.35GHz ARM Cortex-A53 (Hexa-core) |
| GPU graphical controller | ARM Mali-G52 MC2 (950MHz) | ARM Mali-G71 MP2 (770MHz) |
| Performance (benchmark) | AnTuTu: 201829 (v8) Geekbench: 1325 (v5.1) | AnTuTu: 122778 (v9) |
💽 Memory and storage | ||
| Redmi 9 (128GB/4GB) | Galaxy A20 (SM-A205U) | |
| RAM memory | 4GB LPDDR4X | 3GB LPDDR4X |
| Internal storage | 128GB (106GB available) eMMC 5.1 | 32GB (21GB available) eMMC 5.1 |
| External storage | Until 512GB microSD, microSDXC (dedicated slot) | Until 1TB microSD, microSDXC (dedicated slot) |
📶 Mobile networks | ||
| Redmi 9 (128GB/4GB) | Galaxy A20 (SM-A205U) | |
| Dual-SIM | Dual-SIM Standby - Call active on one sim card (dedicated slot) | Not supported |
| SIM card | 2 slots (Dual-SIM) nano-SIM (4FF) | 1 slot (Single-SIM) nano-SIM (4FF) |
| Maximum Download / Upload | 300/50 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 | 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 Cat4 (Bands 2, 3, 4, 5, 7, 13, 20, 28, 66) |
| Primary 5G network | Not supported | Not supported |
| Primary data network | GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A | GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, LTE |
| Secondary 2G network | GSM 850/900/1800/1900 | Not supported |
| Secondary 3G network | UMTS 850/900/1700/1900/2100 | Not supported |
| Secondary 4G network | LTE Cat6 (1, 2, 3, 4, 5, 7, 8, 20, 28) TD-LTE (38, 40, 41) VoLTE | Not supported |
| Secondary data network | GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, LTE, LTE-A | Not supported |
📷 Camera | ||
| Redmi 9 (128GB/4GB) | Galaxy A20 (SM-A205U) | |
| Back camera (main camera) | (quad camera) 13 megapixels 8MP ultrawide f/2.2118°1/4.0"1.12µm 5MP macro f/2.4 2MP depth f/2.4 | (dual camera) 13 megapixels 5MP ultrawide f/2.212mm |
| Main camera resolution | 4128x3096 pixels | 4128x3096 pixels |
| Video recording (primary) | Full HD (1920x1080) 30 fps | Full HD (1920x1080) 30 fps |
| Flash | LED flash | LED flash |
| Focal aperture | f/2.2 (aperture) | f/1.9 (aperture) |
| Focal length | 28mm (lens) | 28mm (lens) |
| Sensor size | 1/3.1" inches | feature not registered |
| Pixel size | 1.12µm 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 | 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 9 (128GB/4GB) | Galaxy A20 (SM-A205U) | |
| Front camera (secondary) | 8 megapixels | 8 megapixels |
| Front camera resolution | 3264x2448 pixels | 3264x2448 pixels |
| Video recording (secondary) | Full HD (1920x1080) | Full HD (1920x1080) |
| Front flash | Not supported | Not supported |
| Focal aperture | f/2.0 (aperture) | f/2.0 (aperture) |
| Focal length | 27mm (lens) | feature not registered |
| Sensor size | 1/4" inches | feature not registered |
| Pixel size | 1.12µm pixel | feature not registered |
🔉 Sound and multimedia | ||
| Redmi 9 (128GB/4GB) | Galaxy A20 (SM-A205U) | |
| 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.264, H.263, WMV, MKV |
| Audio formats | MP3, WAV, WMA, eAAC+, FLAC | MP3, WAV, WMA, eAAC+, FLAC |
🔌 Connectivity | ||
| Redmi 9 (128GB/4GB) | Galaxy A20 (SM-A205U) | |
| 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 | 5.0 + A2DP/LE | 5.0 + A2DP/LE |
| WiFi | 802.11 a/b/g/n/ac [wifi5] (2.4GHz, 5GHz) + MIMO WiFi Direct, hotspot | 802.11 b/g/n [wifi4] (2.4GHz) WiFi Direct, hotspot |
| DLNA | Not supported | Not supported |
| GPS | A-GPS, GeoTagging, GLONASS, BeiDou | A-GPS, GeoTagging, GLONASS, BeiDou |
| NFC | Not supported | Supported |
| Infrared port | Supported | Not supported |
🧭 Sensors | ||
| Redmi 9 (128GB/4GB) | Galaxy A20 (SM-A205U) | |
| Sensors | Accelerometer Ambient light sensor Compass Face unlock Fingerprint sensor (rear-mounted) Proximity sensor | Accelerometer Compass Face unlock Fingerprint sensor (rear-mounted) Gyroscope Hall effect Proximity sensor |
| Vibrating alert | Supported | Supported |
🔋 Battery | ||
| Redmi 9 (128GB/4GB) | Galaxy A20 (SM-A205U) | |
| Battery type | LiPo: li-ion polymer (Non removable) | LiPo: li-ion polymer (Non removable) |
| Battery capacity | 5020 mAh | 4000 mAh |
| Charger, watts | 18W Wired fast charging | 15W Wired fast charging |
| Inductive / wireless charging | Not supported | Not supported |
| Talk time autonomy | 31 hours (1.3 days) | 26 hours (1.1 days) |
| Standby | feature not registered | feature not registered |
➕ Other features | ||
| Redmi 9 (128GB/4GB) | Galaxy A20 (SM-A205U) | |
| 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, Sunset Purple, Ocean Green, Pink/Blue • 10W charger included | • Colors: Black, Deep Blue, Red, Coral Orange |
☢️ Radiation rate | ||
| Redmi 9 (128GB/4GB) | Galaxy A20 (SM-A205U) | |
| SAR 1.6W/kg (USA, Mexico, etc.) | 0.913W/kg (head), 0.999W/kg (body) | 1.09W/kg (head), 0.6W/kg (body) |
| SAR 2W/kg (Europe, UK, etc.) | 0.711W/kg (head), 1.059W/kg (body) | feature not registered |