Phone Comparison - Samsung Galaxy S21 Ultra 5G vs Google Pixel 7a vs Xiaomi Redmi Note 13 Pro
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| Price Comparison (India) | - | - | |
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| Manufacturer | Samsung | Xiaomi | |
| Announced | 2021, January 14 | 2023, May 10 | September 2023 |
| Status | Coming soon. Exp. release 2021, January 29 | Available. Released 2023, May 10 | Available - September 2023 |
| Price | Rs. 105,999 ($0.00) [Similarly Priced] | Rs. 43,999 ($0.00) [Similarly Priced] | Rs. 25,999 ($0.00) [Similarly Priced] |
| Colors | Phantom Black, Phantom Silver, Phantom Titanium, Phantom Navy, Phantom Brown | Arctic Blue, Carbon, Cotton | Black, White, Violet, Blue |
| Form Factor | Candybar | Candybar | Candybar |
| Dimension |
165.1 x 75.6 x 8.9 mm (6.5 x 2.98 x 0.35 in) |
152 x 72.9 x 9 mm (5.98 x 2.87 x 0.35 in) |
161.2 x 74.3 x 8 mm (6.35 x 2.93 x 0.31 in) |
| Weight | 227 g (8.01 oz) | 193.5 g (6.81.0.18 oz) | 187 g (6.6 oz) |
| SIM Type | Single SIM (Nano-SIM and/or eSIM), Hybrid Dual SIM (Nano-SIM, dual stand-by) | Nano-SIM and eSIM | Dual SIM (Nano-SIM, dual stand-by) |
| 2G Network | GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 (Dual SIM model only) CDMA2000 1xEV-DO |
GSM 850 / 900 / 1800 / 1900 | GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 CDMA 800 |
| 3G Network | HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100 | HSDPA 800 / 850 / 900 / 1700(AWS) / 1900 / 2100 | HSDPA 800 / 850 / 900 / 2100 CDMA2000 1x |
| 4G Network | LTE | 1, 2, 3, 4, 5, 7, 8, 12, 13, 14, 17, 20, 25, 26, 28, 29, 30, 38, 40, 41, 48, 66, 71 - GWKK3, G0DZQ 1, 2, 3, 4, 5, 7, 8, 12, 17, 18, 19, 20, 21, 25, 28, 32, 38, 39, 40, 41, 42, 66 - GHL1X, G82U8 |
1, 3, 5, 8, 19, 34, 38, 39, 40, 41 - China |
| 5G Network | SA/NSA/Sub6/mmWave | 1, 2, 3, 5, 7, 8, 12, 14, 20, 25, 28, 30, 38, 41, 48, 66, 71, 77, 78 SA/NSA/Sub6 - GWKK3 1, 2, 3, 5, 7, 8, 12, 14, 20, 25, 28, 30, 38, 41, 48, 66, 71, 77, 78, 260, 261 SA/NSA/Sub6/mmWave - G0DZQ 1, 2, 3, 5, 7, 8, 12, 20, 25, 28, 38, 40, 41, 66, 75, 76, 77, 78, 79 SA/NSA/Sub6 - GHL1X, G82U8 |
1, 3, 5, 8, 28, 38, 41, 77, 78 SA/NSA - China |
| Messaging | |||
| Build Features | - Fingerprint Sensor (under display, ultrasonic) Samsung Pay (Visa, MasterCard certified) IP68 dust/water resistant (up to 1.5m for 30 mins) Stylus support Samsung DeX, Samsung Wireless DeX (desktop experience support) ANT+ |
- Fingerprint Sensor (under display, optical) IP67 dust/water resistant (up to 1m for 30 min) |
- Fingerprint Sensor (under display, optical) |
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| OS | Android 11 | Android 13 | Android 13 |
| User Interface | One UI 3.0 | - | MIUI 14 |
| 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/Korea, Exynos 2100 - Global / Qualcomm Snapdragon 875 - USA | Octa-core (2x2.85 GHz Cortex-X1 & 2x2.35 GHz Cortex-A78 & 4x1.80 GHz Cortex-A55), Google Tensor G2 (5 nm) | Octa-core (4x2.40 GHz & 4x1.95 GHz), Qualcomm SM7435-AB Snapdragon 7s Gen 2 (4 nm) |
| GPU | Mali-G78 MP14 - International / Adreno 660 - USA/China/Korea | Mali-G710 MP7 | Adreno 710 |
| RAM | 16 GB | 6 GB | 16 GB |
| Internal Memory | 512 GB | 128 GB | 512 GB |
| External Memory | microSDXC (uses shared SIM slot) | No | No |
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| Type | QHD+ Dynamic AMOLED 2X Display 120Hz Refresh Rate HDR10+ 1500 nits (peak) Corning Gorilla Glass Victus Always-on display |
FHD+ OLED Screen HDR 90Hz Refresh Rate Corning Gorilla Glass |
FHD+ OLED Screen 120Hz Refresh Rate Dolby Vision, 1800 Nits (peak) Corning Gorilla Glass Victus |
| Colors | 16M Colour | 16M Colors | 68B colors |
| Size | 6.8 inches | 6.1 inches | 6.67 inches |
| Resolution | 1440 x 3200 pixels (516 ppi) | 1080 x 2400 pixels (431 ppi) | 1220 x 2712 pixels (446 ppi) |
| Screen-to-Body Ratio | 89.46% | 81.24% | 89.60% |
| Multi-Touch |  |
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| 3.5mm Jack | |
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| Radio | FM radio (Snapdragon model only; market/operator dependent) | No | No |
| Games | Yes + Downloadable | Yes + Downloadable | Yes + Downloadable |
| Loud Speaker | |
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| Rear Camera | 108 MP + 10 MP + 10 MP + 12 MP + 0.3 MP | 64 MP + 13 MP | 200 MP + 8 MP + 2 MP |
| Flash | LED flash | Dual-LED Flash | Dual-LED Dual-tone Flash |
| Features | 108 MP (2nd gen), f/1.8, 26mm (wide), 1/1.33", 0.8µm, PDAF, Laser AF, OIS 10 MP, f/4.9, 240mm (periscope telephoto), 1/3.24", 1.22µm, dual pixel PDAF, OIS, 10x optical zoom 10 MP, f/2.4, 70mm (telephoto), 1/3.24", 1.22µm, dual pixel PDAF, OIS, 3x optical zoom 12 MP, f/2.2, 13mm (ultrawide), 1/2.55", 1.4µm, dual pixel PDAF, Super Steady video auto-HDR, panorama |
64 MP, f/1.9, 26mm (wide), 1/1.73", 0.8µm, Dual Pixel PDAF, OIS 13 MP, f/2.2, 120˚ (ultrawide), 1.12µm Pixel Shift, Auto-HDR, Panorama |
200 MP, f/1.7, (wide), 1/1.4", 0.56µm, multi-directional PDAF, OIS 8 MP, f/2.2, 120˚ (ultrawide), 1/4", 1.12µm 2 MP, f/2.4, (macro) HDR, Panorama |
| Video | 8K@24fps, 4K@30/60fps, 1080p@30/60/240fps, 720p@960fps, HDR10+, stereo sound rec., gyro-EIS | 4K@30/60fps, 1080p@30/60/120/240fps; gyro-EIS, OIS | 4K@30fps, 1080p@30/60/120fps |
| Front Camera |
40 MP, f/2.2, 26mm (wide), 0.7µm, PDAF Dual video call, Auto-HDR 4K@30/60fps, 1080p@30fps [Similar] |
13 MP, f/2.2, 20mm (ultrawide), 1.12µm Auto-HDR, panorama 4K@30fps, 1080p@30fps [Similar] |
16 MP HDR 1080p@30/60fps [Similar] |
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| GPRS | Yes | Yes | Yes |
| Edge | Yes | Yes | Yes |
| 3G | HSPA 42.2/5.76 Mbps, LTE-A (CA), 5G | HSPA, LTE-A (CA), 5G | HSPA, LTE-A (CA), 5G |
| Bluetooth | 5.2, A2DP, LE | 5.2, A2DP, LE | 5.2, A2DP, LE |
| Wi-Fi | Wi-Fi 802.11 a/b/g/n/ac/6e, dual-band, Wi-Fi Direct, hotspot | Wi-Fi 802.11 a/b/g/n/ac/6e, dual-band, Wi-Fi Direct | Wi-Fi 802.11 a/b/g/n/ac, dual-band |
| USB | USB Type-C 3.2, USB On-The-Go | USB Type-C 3.1 | USB Type-C 2.0 |
| GPS | Yes, with A-GPS, GLONASS, BDS, GALILEO | GPS, GLONASS, GALILEO, BDS, QZSS | GPS (L1), GLONASS (G1), BDS (B1I+B1c), GALILEO (E1), QZSS (L1) |
| Browser | Yes | Yes | Yes |
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| Internal | 512 GB, 16 GB RAM or 256 GB, 12 GB RAM or 128 GB, 12 GB RAM UFS 3.1 | 128 GB, 6 GB RAM UFS 3.1 | 512 GB, 16 GB RAM or 512 GB, 12 GB RAM or 256 GB, 12 GB RAM or 256 GB, 8 GB RAM or 128 GB, 8 GB RAM |
| Expandable Storage | microSDXC (uses shared SIM slot) | No | No |
| USB OTG | Supported | Not Supported | Not Supported |
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| Fingerprint | |
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| Proximity Sensor | |
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| Accelerometer Sensor | |
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| Magnetic-Field Sensor (Compass) | |
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| Gyroscope Sensor | |
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| Barometer Sensor | |
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| NFC | |
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| Type | Non-removable Li-Po Battery Fast battery charging 25W USB Power Delivery 3.0 Fast Qi/PMA wireless charging 15W Reverse wireless charging 4.5W |
Non-removable Li-Po Battery Fast battery Charging 18W, PD3.0 |
Non-removable Li-Po Battery Fast battery Charging 67W wired, PD3.0, 100% in 44 min |
| Capacity | 5000 mAh | 4385 mAh | 5100 mAh |
| Stand by | - | - | - |
| Talk Time | - | - | - |
Rs. 43,999 
