Phone Comparison - Samsung Z1 vs Samsung Galaxy S Duos 3 vs vivo Y91i
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| Price Comparison (India) | - | - | |
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| Manufacturer | Samsung | Samsung | vivo |
| Announced | January 2015 | February 2015 | March 2019 |
| Status | Available - January 2015 | Available - February 2015 | Available - March 2019 |
| Price | Rs. 5,700 ($83.82) [Similarly Priced] | Rs. 5,300 ($77.94) [Similarly Priced] | Rs. 9,990 ($0.00) [Similarly Priced] |
| Colors | White, Black, Wine Red | Black, White | Fusion Black, Sunset Red, Ocean Blue |
| Form Factor | Candybar | Candybar | Candybar |
| Dimension |
120.4 x 63.2 x 9.7 mm (4.74 x 2.49 x 0.38 in) |
121.4 x 62.9 x 10.8 mm (4.78 x 2.48 x 0.43 in) |
155.1 x 75.1 x 8.3 mm (6.11 x 2.96 x 0.33 in) |
| Weight | 112 g (3.95 oz) | 124 g (4.37 oz) | 163.5 g (5.75.0.18 oz) |
| SIM Type | - | - | 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 |
| 3G Network | HSDPA 900 / 2100 | HSDPA 900 / 2100 | HSDPA 850 / 900 / 2100 |
| 4G Network | - | - | LTE band 1(2100), 3(1800), 5(850), 7(2600), 8(900), 38(2600), 40(2300), 41(2500) |
| Messaging | SMS, MMS, EMail, IM | SMS, MMS, Push Mail, EMail, IM | |
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| OS | Tizen OS, v2.3 | Android OS, v4.4 (KitKat) | Android 8.1 (Oreo) |
| Processor | Dual-core 1.2 GHz Cortex-A7, Spreadtrum SC7727S | Dual-core 1.2 GHz Cortex-A7 | Octa-core 2.0 GHz Cortex-A53, Mediatek MT6762 Helio P22 (12 nm) |
| GPU | Mali-400 | - | PowerVR GE8320 |
| RAM | 768 MB | 512 MB | 2 GB |
| Internal Memory | 4 GB | 4 GB | 16/32 GB |
| External Memory | microSD, up to 64 GB | microSD, up to 64 GB | microSD, up to 256 GB (dedicated slot) |
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| Type | PLS TFT capacitive touchscreen | TFT capacitive touchscreen | IPS LCD Capacitive Touchscreen |
| Colors | 16M colors | 16M colors | 16M colors |
| Size | 4.0 inches | 4.0 inches | 6.22 inches |
| Resolution | 480 x 800 pixels (233 ppi) | 480 x 800 pixels (233 ppi) | 720 x 1520 pixels (270 ppi) |
| Screen-to-Body Ratio | 59.97% | 59.76% | 83.15% |
| Multi-Touch |  |
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| 3.5mm Jack | |
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| Radio | FM radio | FM radio | FM radio |
| Games | Yes + Downloadable | Yes + Downloadable | Yes + Downloadable |
| Loud Speaker | |
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| Rear Camera | 3.15 MP, 2048 x 1536 pixels | 5 MP, 2592 х 1944 pixels | 13 MP |
| Flash | LED flash | LED flash | LED Flash |
| Features | Geo-tagging, Face Detection | Auto focus, Geo-tagging | 13 MP, f/2.2, PDAF Panorama |
| Video | Yes | 720p@30fps | 1080p@30fps |
| Front Camera | VGA [Similar] | No [Similar] | 8 MP, f/1.8 [Similar] |
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| GPRS | Yes | Yes | Yes |
| Edge | Yes | Yes | Yes |
| 3G | HSPA | HSPA 21.1/5.76 Mbps | HSPA, LTE Cat4 150/50 Mbps |
| Bluetooth | v4.1, A2DP | v4.0, A2DP | 5.0, A2DP, LE |
| Wi-Fi | Wi-Fi 802.11 b/g/n | Wi-Fi 802.11 b/g/n, Wi-Fi Direct, hotspot | Wi-Fi 802.11 b/g/n, WiFi Direct, hotspot |
| USB | microUSB v2.0 | microUSB v2.0 | microUSB 2.0, USB On-The-Go |
| GPS | Yes, with A-GPS | Yes, with A-GPS, GLONASS | Yes, with A-GPS, GLONASS, BDS |
| Browser | HTML | HTML | Yes |
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| Internal | 4 GB, 768 MB RAM | 4 GB, 512 MB RAM | 16/32 GB, 2 GB RAM |
| Expandable Storage | microSD, up to 64 GB | microSD, up to 64 GB | microSD, up to 256 GB (dedicated slot) |
| USB OTG | - | - | Supported |
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| Fingerprint | |
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| Proximity Sensor | |
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| Accelerometer Sensor | |
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| NFC | |
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| Type | Li-Ion Battery | Li-Ion Battery | Non-removable Li-Po Battery |
| Capacity | 1500 mAh | 1500 mAh | 4030 mAh |
| Stand by | - | - | - |
| Talk Time | Up to 8 h (3G) | - | - |
Rs. 9,990 
