Phone Comparison - Samsung Galaxy S21 Ultra 5G vs Asus Zenfone 8 vs Xiaomi 11T
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| Manufacturer | Samsung | Asus | Xiaomi |
| Announced | 2021, January 14 | 2021, May 12 | September 2021 |
| Status | Coming soon. Exp. release 2021, January 29 | Available. Released 2021, May 13 | Coming Soon - September 2021 |
| Price | Rs. 105,999 ($0.00) [Similarly Priced] | - | - |
| Colors | Phantom Black, Phantom Silver, Phantom Titanium, Phantom Navy, Phantom Brown | Obsidian Black, Horizon Silver | Meteorite Gray, Moonlight White, Celestial 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) |
148 x 68.5 x 8.9 mm (5.83 x 2.7 x 0.35 in) |
164.1 x 76.9 x 8.8 mm (6.46 x 3.03 x 0.35 in) |
| Weight | 227 g (8.01 oz) | 169 g (5.96 oz) | 203 g (7.16 oz) |
| SIM Type | Single SIM (Nano-SIM and/or eSIM), Hybrid Dual SIM (Nano-SIM, dual stand-by) | Dual SIM (Nano-SIM, dual stand-by) | 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 - SIM 1 & SIM 2 | GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 |
| 3G Network | HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100 | HSDPA 800 / 850 / 900 / 1700(AWS) / 1900 / 2100 | HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100 |
| 4G Network | LTE | LTE | 1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 18, 19, 20, 26, 28, 32, 38, 40, 41, 42, 66 |
| 5G Network | SA/NSA/Sub6/mmWave | SA/NSA | 1, 3, 5, 7, 8, 20, 28, 38, 40, 41, 66, 77, 78 SA/NSA |
| 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 |
- Fingerprint Sensor (side-mounted) IP53, dust and splash protection |
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| OS | Android 11 | Android 11 | Android 11 |
| User Interface | One UI 3.0 | ZenUI 8 | MIUI 12.5 |
| 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 (1x2.84 GHz Kryo 680 & 3x2.42 GHz Kryo 680 & 4x1.80 GHz Kryo 680), Qualcomm SM8350 Snapdragon 888 5G (5 nm) | Octa-core (1x3.0 GHz Cortex-A78 & 3x2.6 GHz Cortex-A78 & 4x2.0 GHz Cortex-A55), MediaTek MT6893 Dimensity 1200 5G (6 nm) |
| GPU | Mali-G78 MP14 - International / Adreno 660 - USA/China/Korea | Adreno 660 | Mali-G77 MC9 |
| RAM | 16 GB | 16 GB | 8 GB |
| Internal Memory | 512 GB | 256 GB | 256 GB |
| External Memory | microSDXC (uses shared SIM slot) | microSDXC (dedicated slot) | 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+ Super AMOLED Screen 120Hz Refresh Rate HDR10+ 1100 nits (peak) |
FHD+ AMOLED Screen 120Hz Refresh Rate HDR10+ 800 nits (typ), 1000 nits (peak) Corning Gorilla Glass Victus |
| Colors | 16M Colour | 16M colors | 1B Colors |
| Size | 6.8 inches | 5.9 inches | 6.67 inches |
| Resolution | 1440 x 3200 pixels (516 ppi) | 1080 x 2400 pixels (446 ppi) | 1080 x 2400 pixels (395 ppi) |
| Screen-to-Body Ratio | 89.46% | 82.92% | 84.93% |
| 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 + 12 MP | 108 MP + 8 MP + 5 MP |
| Flash | LED flash | 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/1.8, 26mm (wide), 1/1.73", 0.8µm, PDAF, OIS 12 MP, f/2.2, 112˚, 14mm (ultrawide), 1/2.55", 1.4µm, dual pixel PDAF HDR, Panorama |
108 MP, f/1.8, 26mm (wide), 1/1.52", 0.7µm, PDAF 8 MP, f/2.2, 120˚ (ultrawide), 1/4", 1.12µm 5 MP, f/2.4, 50mm (telephoto macro), 1/5.0", 1.12µm, AF HDR, Panorama |
| Video | 8K@24fps, 4K@30/60fps, 1080p@30/60/240fps, 720p@960fps, HDR10+, stereo sound rec., gyro-EIS | 8K@30fps, 4K@30/60/120fps, 1080p@30/60/240fps, 720p@480fps; gyro-EIS, HDR | 4K@30/60fps, 1080p@30/60/120/240/960, HDR10+, gyro-EIS |
| Front Camera |
40 MP, f/2.2, 26mm (wide), 0.7µm, PDAF Dual video call, Auto-HDR 4K@30/60fps, 1080p@30fps [Similar] |
12 MP, f/2.5, 28mm (standard), 1/2.93", 1.22µm, dual pixel PDAF Video 4K@30fps, 1080p@30/60fps [Similar] |
16 MP, f/2.5, (wide), 1/3.06", 1.0µm 1080p@30fps [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 42.2/5.76 Mbps, LTE-A (CA) | HSPA 42.2/5.76 Mbps, LTE-A, 5G |
| Bluetooth | 5.2, A2DP, LE | 5.0, A2DP, LE, aptX Adaptive | 5.2, A2DP, LE, aptX HD, aptX Adaptive |
| 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/6, dual-band, Wi-Fi Direct, hotspot | Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct, hotspot |
| USB | USB Type-C 3.2, USB On-The-Go | USB Type-C | USB Type-C 2.0, USB On-The-Go |
| GPS | Yes, with A-GPS, GLONASS, BDS, GALILEO | Yes, with dual-band A-GPS, GLONASS, GALILEO, BDS, QZSS, NavIC | Yes, with dual-band A-GPS, GLONASS, GALILEO, BDS |
| 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 | 256 GB, 16 GB RAM or 256 GB, 8 GB RAM or 128 GB, 8 GB RAM or 128 GB, 6 GB RAM | 256 GB, 8 GB RAM or 128 GB, 6 GB RAM UFS 3.1 |
| Expandable Storage | microSDXC (uses shared SIM slot) | microSDXC (dedicated slot) | No |
| USB OTG | Supported | Supported | 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 30W USB Power Delivery 3.0 Reverse charging |
Li-Ion, non-removable Fast charging 67W, 100% in 36 min (advertised) |
| Capacity | 5000 mAh | 4000 mAh | 5000 mAh |
| Stand by | - | - | - |
| Talk Time | - | - | - |
