Phone Comparison - Xiaomi Mi 4i vs Xiaomi Redmi Note 9S vs Xiaomi Mix Fold 4
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| Manufacturer | Xiaomi | Xiaomi | Xiaomi |
| Announced | April 2015 | March 2020 | July 2024 |
| Status | Available - April 2015 | Coming Soon - April 2020 | Available - July 2024 |
| Price | Rs. 8,999 ($132.34) [Similarly Priced] | - | - |
| Colors | Black, White, Blue, Yellow, Pink | Aurora Blue, Glacier White, Interstellar Gray | Black, White, Blue |
| Form Factor | Candybar | Candybar | Candybar |
| Dimension |
138.1 x 69.6 x 7.8 mm (5.44 x 2.74 x 0.31 in) |
165.8 x 76.7 x 8.8 mm (6.53 x 3.02 x 0.35 in) |
Unfolded: 159.4 x 143.3 x 4.6 mm Folded: 159.4 x 73.1 x 9.5 mm (Unfolded: 6.28 x 5.64 x 0.18 in Folded: 6.28 x 2.88 x 0.37 in) |
| Weight | 130 g (4.59 oz) | 209 g (7.37 oz) | 226 g or 228 g (7.97 oz or 8.04 oz) |
| SIM Type | - | 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 | GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 | GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 CDMA 800 / 1900 |
| 3G Network | HSDPA 850 / 900 / 1900 / 2100 | HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100 | HSDPA 800 / 850 / 900 / 1700(AWS) / 1900 / 2100 CDMA2000 1xEV-DO |
| 4G Network | LTE | LTE band 1(2100), 2(1900), 3(1800), 4(1700/2100), 5(850), 7(2600), 8(900), 20(800), 28(700), 38(2600), 40(2300) | 1, 2, 3, 4, 5, 7, 8, 12, 17, 18, 19, 20, 26, 28, 34, 38, 39, 40, 41, 42, 48, 66 |
| 5G Network | - | - | 1, 2, 3, 5, 7, 8, 12, 20, 26, 28, 38, 40, 41, 48, 66, 77, 78, 79 SA/NSA |
| Messaging | SMS, MMS, EMail, IM | ||
| Build Features | - | - Fingerprint Sensor (side-mounted) Splash-proof |
- Fingerprint Sensor (side-mounted) IPX8 water resistant (up to 1.5m for 30 min) |
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| OS | Android OS, v5.0 (Lollipop) | Android 10.0 | Android 14 |
| User Interface | - | MIUI 11 | HyperOS |
| Processor | Quad-core 1.7 GHz Cortex-A53 & quad-core 1.0 GHz Cortex-A53, Qualcomm MSM8939 Snapdragon 615 | Octa-core (2x2.3 GHz Kryo 465 Gold & 6x1.8 GHz Kryo 465 Silver), Qualcomm SM7125 Snapdragon 720G (8 nm) | Octa-core (1x3.3 GHz Cortex-X4 & 3x3.2 GHz Cortex-A720 & 2x3.0 GHz Cortex-A720 & 2x2.3 GHz Cortex-A520), Qualcomm SM8650-AB Snapdragon 8 Gen 3 (4 nm) |
| GPU | Adreno 405 | Adreno 618 | Adreno 750 |
| RAM | 2 GB | 6 GB | 16 GB |
| Internal Memory | 16/32 GB | 128 GB | 1 TB |
| External Memory | No | microSDXC (dedicated slot) | No |
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| Type | IPS LCD capacitive touchscreen | FHD+ IPS LCD Capacitive Touchscreen Corning Gorilla Glass 5 450 nits typ. brightness (advertised) |
QHD+ Foldable LTPO AMOLED Screen 120Hz Refresh Rate HDR10+, Dolby Vision 1700 Nits (HBM), 3000 Nits (peak) |
| Colors | 16M colors | 16M colors | 1B colors |
| Size | 5.0 inches | 6.67 inches | 7.98 inches |
| Resolution | 1080 x 1920 pixels (441 ppi) | 1080 x 2400 pixels (395 ppi) | 2224 x 2488 pixels (418 ppi) |
| Screen-to-Body Ratio | 71.57% | 84.28% | 89.45% |
| Multi-Touch |  |
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| 3.5mm Jack | |
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| Radio | FM radio | FM radio, recording | No |
| Games | Yes + Downloadable | Yes + Downloadable | Yes + Downloadable |
| Loud Speaker | |
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| Rear Camera | 13 MP, 4128 x 3096 pixels | 48 MP + 8 MP + 5 MP + 2 MP | 50 MP + 50 MP + 10 MP + 12 MP |
| Flash | LED flash | LED flash | LED flash |
| Features | Auto focus, Geo-tagging, Touch Focus, Face/smile Detection, Panorama, HDR | 48 MP, f/1.8, 26mm (wide), 1/2.0", 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) HDR, Panorama |
50 MP, f/1.7, 23mm (wide), 1/1.49", 1.0µm, Laser AF, PDAF, OIS 50 MP, f/2.0, 47mm (telephoto), PDAF (9cm - ∞), OIS, 2x optical zoom 10 MP, f/2.9, 115mm (periscope telephoto), PDAF (30cm - ∞), OIS, 5x optical zoom 12 MP, f/2.2, 15mm, 120˚ (ultrawide) HDR, panorama, Leica lenses |
| Video | 1080p@30fps | 2160p@30fps, 1080p@30/60/120fps, 720p@960fps, gyro-EIS | 8K@24fps, 4K@24/30/60fps, 1080p@30/60/120/240/960fps, 720p@1920fps, Dolby Vision HDR |
| Front Camera | 5 MP [Similar] |
16 MP Punch-Hole, f/2.5, 26mm (wide), 1/3.1", 1.0µm HDR 1080p@30fps [Similar] |
16 MP, (wide) Cover camera: 16 MP, (wide) Dolby Vision HDR 1080p@30/60fps [Similar] |
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| GPRS | Yes | Yes | Yes |
| Edge | Yes | Yes | Yes |
| 3G | HSPA, LTE | HSPA 42.2/5.76 Mbps, LTE-A | HSPA, LTE (CA), 5G |
| Bluetooth | v4.0, A2DP | 5.0, A2DP, LE | 5.4, A2DP, LE, aptX HD, aptX Adaptive, LHDC |
| Wi-Fi | Wi-Fi 802.11 a/b/g/n, dual-band, hotspot | Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct, hotspot | Wi-Fi 802.11 a/b/g/n/ac/6e/7, dual-band (tri-band after future SW update), Wi-Fi Direct |
| USB | microUSB v2.0 | 2.0, Type-C 1.0 reversible connector | USB Type-C 3.2, OTG |
| GPS | Yes, with A-GPS, GLONASS | Yes, with A-GPS, GLONASS, GALILEO, BDS | GPS (L1+L5), BDS (B1I+B1c+B2a), GALILEO (E1+E5a), QZSS (L1+L5), NavIC (L5), GLONASS |
| Browser | HTML5 | Yes | Yes |
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| Internal | 16/32 GB, 2 GB RAM | 128 GB, 6 GB RAM or 64 GB, 4 GB RAM (UFS 2.1) | 1 TB, 16 GB RAM or 512 GB, 16 GB RAM or 256 GB, 12 GB RAM UFS 4.0 |
| Expandable Storage | No | microSDXC (dedicated slot) | No |
| USB OTG | - | Supported | Supported |
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| Fingerprint | |
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| Proximity Sensor | |
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| Accelerometer Sensor | |
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| Barometer Sensor | |
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| NFC | |
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| Type | Li-Po Battery | Non-removable Li-Po Battery Fast battery charging 18W |
Non-removable Li-Po Battery Fast Battery Charging 67W wired, PD3.0, QC4, 31% in 10 min 50W wireless, 24% in 10 min |
| Capacity | 3120 mAh | 5020 mAh | 5100 mAh |
| Stand by | - | - | - |
| Talk Time | - | - | - |
