| Samsung Galaxy S21 Plus 5G |
Xiaomi Redmi Note 9 Pro |
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| Hardware and OS | Samsung Galaxy S21 Plus 5G | Xiaomi Redmi Note 9 Pro |
| Operating system | Android 11, One UI 3.1 | Android 10.0; MIUI 11 |
| Processor | Octa-core (1x2.9 GHz Cortex-X1 & 3x2.80 GHz Cortex-A78 & 4x2.2 GHz Cortex-A55) - International / Octa-core (1x2.84 GHz Kryo 680 & 3x2.42 GHz Kryo 680 & 4x1.80 GHz Kryo 680 - USA/China | Octa-core (2x2.3 GHz Kryo 465 Gold & 6x1.8 GHz Kryo 465 Silver) |
| Chipset | Qualcomm SM7125 Snapdragon 720G (8 nm) | |
| GPU | Mali-G78 MP14 - International / Adreno 660 - USA/China | Adreno 618 |
| RAM | 8 GB | |
| Internal memory | 64GB 4GB RAM, 128GB 6GB RAM | |
| Internal Storage | 128 GB, 256 GB | |
| External memory | microSDXC (dedicated slot) | |
| Memory Card Slot | No | |
| User Interface | Yes | |
| Display | Samsung Galaxy S21 Plus 5G | Xiaomi Redmi Note 9 Pro |
| Type | Dynamic AMOLED 2X | IPS LCD |
| Size | 6.7 inches | 6.67" inc |
| Resolution | 1080 x 2400 pixels | 1080 x 2400 px |
| Protection | Corning Gorilla Glass Victus | Corning Gorilla Glass 5 |
| Touchscreen | Yes | capacitive touchscreen |
| Screen-to-Body Ratio | 84.5% | |
| Display area | 107.4 cm2 | |
| Display aspect ratio | 20:9 (height:width) | |
| Pixel Density | 394 PPI | 395 PPI |
| Features | Always-on display, | |
| Colors | 16M | 16M |
| Other | 450 nits typ. brightness (advertised) | |
| Connectivity | Samsung Galaxy S21 Plus 5G | Xiaomi Redmi Note 9 Pro |
| 5G Network | SA/NSA/Sub6/mmWave | |
| 2G Network | GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 | |
| 3G Network | HSDPA 850 / 900 / 1900 / 2100 | |
| 4G Network | 1, 2, 3, 4, 5, 7, 8, 12, 13, 14, 18, 19, 20, 25, 26, 28, 30, 38, 39, 40, 41, 46, 48, 66, 71 - SM-G996U1 | LTE band 1(2100), 3(1800), 5(850), 8(900), 40(2300), 41(2500) |
| NFC | Yes | |
| Wi-Fi | Wi-Fi 802.11 a/b/g/n/ac/6, dual-band, Wi-Fi Direct, hotspot | Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct, hotspot |
| Network | GSM / HSPA / LTE | |
| SIM card | Dual SIM (Nano-SIM, dual stand-by) | |
| SIM | Nano SIM | |
| Bluetooth | 5.0, A2DP, LE | |
| Dual SIM | Single SIM (Nano-SIM and/or eSIM) or Hybrid Dual SIM (Nano-SIM, dual stand-by) | |
| Wireless Charging | Yes | |
| Edge | Yes | |
| GPRS | Yes | |
| GPS | Yes, with A-GPS, GLONASS, BDS, GALILEO | Yes, with A-GPS, GLONASS, GALILEO, BDS, NavIC |
| Speed | HSPA 42.2/5.76 Mbps, LTE-A (CA), 5G | HSPA 42.2/5.76 Mbps, LTE-A |
| USB | USB Type-C 3.2, USB On-The-Go | 2.0, Type-C 1.0 reversible connector |
| Camera | Samsung Galaxy S21 Plus 5G | Xiaomi Redmi Note 9 Pro |
| Image | 4320p | |
| Main camera | 12 MP (wide), 64 MP (periscope telephoto) 1.1x optical zoom, 3x hybrid zoom, 12 MP (ultrawide) Super Steady video. | 48 MP, Quad |
| Specs | 48 MP, f/1.8, (wide), 1/2.25", 0.8µm, PDAF -8 MP, f/2.2, 13mm (ultrawide), 1/4.0", 1.12µm -5 MP, f/2.4, (macro), 1.12µm -2 MP, f/2.4, (depth) | |
| Features | LED flash, auto-HDR, panorama | LED flash, HDR, panorama |
| Video | 2160p@30fps, 1080p@30/60/120fps, 720p@960fps, gyro-EIS | |
| Selfie camera | 10 MP (wide) | 16 MP, Single |
| Multimedia | Samsung Galaxy S21 Plus 5G | Xiaomi Redmi Note 9 Pro |
| Loudspeaker | Yes | |
| Handsfree | Yes | |
| Video Playback | Yes | |
| Video Out | Yes | |
| Ring Tones | Yes | |
| 3.5 mm Jack | No | Yes |
| Radio | FM radio (Snapdragon model only; market/operator dependent) | FM radio, recording |
| Design | Samsung Galaxy S21 Plus 5G | Xiaomi Redmi Note 9 Pro |
| Waterproof | IP68 dust/water resistant (up to 1.5m for 30 mins) | |
| Colors | Aurora Blue, Glacier White, Interstellar Black | |
| Body build | Glass front (Gorilla Glass 5), glass back (Gorilla Glass 5), plastic frame | |
| Dimensions | 161.5 x 75.6 x 7.8 mm | 165.8 x 76.7 x 8.8 mm |
| Weight | 200 g | 209 g |
| Battery | Samsung Galaxy S21 Plus 5G | Xiaomi Redmi Note 9 Pro |
| Capacity | Li-Po 4800 mAh, Fast charging 25W, USB Power Delivery 3.0, Fast Qi/PMA wireless charging 15W, Reverse wireless charging 4.5W. | |
| Placement | Non-removable | |
| Battery capacity | 5020 mAh, Non-removable Li-Po | |
| Other | Samsung Galaxy S21 Plus 5G | Xiaomi Redmi Note 9 Pro |
| Release date | 2020, March 12 | |
| Sensors | Fingerprint (side-mounted), accelerometer, gyro, proximity, compass , Infrared port |
