Phone Comparison - Xiaomi Redmi K40 Gaming vs Asus Zenfone 8 vs Realme GT Neo Flash
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| Manufacturer | Xiaomi | Asus | realme |
| Announced | April 2021 | 2021, May 12 | 2021, May 25 |
| Status | Coming Soon - April 2021 | Available. Released 2021, May 13 | Coming soon. Exp. release 2021, June 06 |
| Colors | Black, Gray, Silver, Bruce Lee Yellow | Obsidian Black, Horizon Silver | Black, Silver, Aurora, Yellow |
| Form Factor | Candybar | Candybar | Candybar |
| Dimension |
161.9 x 76.9 x 8.3 mm (6.37 x 3.03 x 0.33 in) |
148 x 68.5 x 8.9 mm (5.83 x 2.7 x 0.35 in) |
158.5 x 73.3 x 8.4 mm (6.24 x 2.89 x 0.33 in) |
| Weight | 205 g (7.23 oz) | 169 g (5.96 oz) | 179 g (6.31 oz) |
| SIM Type | 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 CDMA2000 1x |
GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 | GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 CDMA2000 1xEV-DO |
| 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 | 1, 2, 3, 4, 5, 7, 8, 18, 19, 26, 34, 38, 39, 40, 41, 42 | LTE | LTE 1, 2, 3, 4, 5, 7, 8, 28, 34, 38, 39, 40, 41 |
| 5G Network | 1, 3, 28, 41, 77, 78 SA/NSA/Sub6 | SA/NSA | 1, 28, 40, 41, 77, 78, 79 SA/NSA |
| Messaging | |||
| Build Features | - Fingerprint Sensor (side-mounted) Physical pop-up gaming triggers IP53, dust and splash protection |
- Fingerprint Sensor |
- Fingerprint Sensor (under display, optical) |
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| OS | Android 11 | Android 11 | Android 11 |
| User Interface | MIUI 12.5 | ZenUI 8 | realme UI 2.0 |
| Processor | Octa-core (1x3.0 GHz Cortex-A78 & 3x2.6 GHz Cortex-A78 & 4x2.0 GHz Cortex-A55), MediaTek MT6893 Dimensity 1200 5G (6 nm) | 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-G77 MC9 | Adreno 660 | Mali-G77 MC9 |
| RAM | 12 GB | 16 GB | 12 GB |
| Internal Memory | 256 GB | 256 GB | 256 GB |
| External Memory | No | microSDXC (dedicated slot) | No |
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| Type | FHD+ OLED Screen 120Hz Refresh Rate HDR10+ 500 nits (typ) Corning Gorilla Glass 5 |
FHD+ Super AMOLED Screen 120Hz Refresh Rate HDR10+ 1100 nits (peak) |
FHD+ Super AMOLED Screen 120Hz Refresh Rate |
| Colors | 1B colors | 16M colors | 16M Colour |
| Size | 6.67 inches | 5.9 inches | 6.43 inches |
| Resolution | 1080 x 2400 pixels (395 ppi) | 1080 x 2400 pixels (446 ppi) | 1080 x 2400 pixels (409 ppi) |
| Screen-to-Body Ratio | 86.09% | 82.92% | 86.04% |
| Multi-Touch |  |
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| 3.5mm Jack | |
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| Radio | No | No | No |
| Games | Yes + Downloadable | Yes + Downloadable | Yes + Downloadable |
| Loud Speaker | |
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| Rear Camera | 64 MP + 8 MP + 2 MP | 64 MP + 12 MP | 64 MP + 8 MP + 2 MP |
| Flash | Dual-LED Flash | LED Flash | Dual-LED Dual-tone Flash |
| Features | 64 MP, f/1.7, 26mm (wide), 1/2.0", 0.7µm, PDAF 8 MP, f/2.2, 120Ë (ultrawide) 2 MP, f/2.4, (macro) 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 |
64 MP, f/1.8, 26mm (wide), 1/1.73", 0.8µm, PDAF 8 MP, f/2.3, 16mm, 119˚ (ultrawide), 1/4.0", 1.12µm 2 MP, f/2.4, (macro) HDR, Panorama |
| Video | 4K@30fps, 1080p@30/60/120fps, 720p@960fps, HDR | 8K@30fps, 4K@30/60/120fps, 1080p@30/60/240fps, 720p@480fps; gyro-EIS, HDR | 4K@30/60fps, 1080p@30/60/240fps, gyro-EIS |
| Front Camera |
16 MP HDR 1080p@30fps, 720p@120fps, HDR [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, , 26mm (wide), 1/3.0" 1.0µm HDR, panorama 1080p@30fps [Similar] |
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| GPRS | Yes | Yes | Yes |
| Edge | Yes | Yes | Yes |
| 3G | HSPA 42.2/5.76 Mbps, LTE-A, 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 | 5.0, A2DP, LE |
| 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/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 2.0, USB On-The-Go | USB Type-C | USB Type-C 2.0, USB On-The-Go |
| GPS | Yes, with dual-band A-GPS, GLONASS, BDS, GALILEO, QZSS, NavIC | Yes, with dual-band A-GPS, GLONASS, GALILEO, BDS, QZSS, NavIC | Yes, with dual-band A-GPS, GLONASS, BDS, GALILEO |
| Browser | Yes | Yes | Yes |
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| Internal | 256 GB, 12 GB RAM or 256 GB, 8 GB RAM or 128 GB, 12 GB RAM or 128 GB, 8 GB RAM or 128 GB, 6 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, 12 GB RAM or 256 GB, 8 GB RAM (UFS 3.1) |
| Expandable Storage | No | 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 67W, 100% in 42 min (advertised) Power Delivery 3.0 Quick Charge 3+ |
Non-removable Li-Po Battery Fast battery charging 30W USB Power Delivery 3.0 Reverse charging |
Non-removable Li-Po Battery Fast charging 65W, 100% in 35 min (advertised) |
| Capacity | 5065 mAh | 4000 mAh | 4500 mAh |
| Stand by | - | - | - |
| Talk Time | - | - | - |
