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| Manufacturer | Apple | Asus | Samsung | 
| Announced | September 2013 | September 2015 | February 2016 | 
| Status | Available - September 2013 | Available - January 2016 | Available - March 2016 | 
| Price | - | Rs. 37,999 ($558.81) [Similarly Priced] | Rs. 50,900 ($748.53) [Similarly Priced] | 
| Colors | Black/Slate, White/Silver | Pure Black, Ceramic White | Various | 
| Form Factor | Candybar | Candybar | Candybar | 
| Dimension | 123.8 x 58.6 x 7.6 mm (4.87 x 2.31 x 0.3 in) | 158.9 x 78.8 x 12 mm (6.26 x 3.1 x 0.47 in) | 150.9 x 72.6 x 7.7 mm (5.94 x 2.86 x 0.3 in) | 
| Weight | 112 g (3.95 oz) | 185 g (6.53 oz) | 157 g (5.54 oz) | 
| SIM Type | - | - | Single SIM (Nano-SIM), Dual SIM (Nano-SIM, Dual Stand-by) | 
| 2G Network | GSM 850 / 900 / 1800 / 1900 CDMA2000 1xEV-DO | GSM 850 / 900 / 1800 / 1900 | GSM 850 / 900 / 1800 / 1900 | 
| 3G Network | HSDPA 850 / 900 / 1700 / 1900 / 2100 CDMA2000 1xEV-DO | HSDPA 850 / 900 / 1900 / 2100 | HSDPA 850 / 900 / 1900 / 2100 HSDPA 850 / 900 / 1700 / 1900 / 2100 | 
| 4G Network | LTE 700 MHz Class 17 / 1700 / 2100 | LTE band 1(2100), 2(1900), 3(1800), 5(850), 7(2600), 8(900), 9(1800), 18(800), 19(800), 28(700) | LTE | 
| Messaging | SMS, MMS, Push Mail, EMail, IM | SMS, MMS, Push Mail, EMail, IM | SMS, MMS, EMail, IM | 
| Build Features | - | - | - Heart rate sensor - Fingerprint sensor - IP68 certified - dust and water resistant - Water resistant up to 1 meter and 30 minutes | 
| Notification LED | - | - | Yes | 
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| OS | iOS 7.0.1 | Android OS, v5.0 (Lollipop) | Android OS, v6.0 (Marshmallow) | 
| Processor | Dual-core 1.3 GHz Cyclone, Apple A7 with M7 Motion Coprocessor | Quad-core 2.5 GHz, Intel Atom Z3590 | Quad-core (2x 2.15 GHz Kryo & 2x 1.6 GHz Kryo)/ Octa-core (4x2.3 GHz Mongoose & 4x1.6 GHz Cortex-A53) , Qualcomm MSM8996 Snapdragon 820/ Exynos 8 Octa 8890 | 
| GPU | PowerVR G6430 | PowerVR G6430 | Adreno 530/ Mali-T880 MP12 | 
| RAM | 1 GB | 4 GB | 4 GB | 
| Internal Memory | 16/32/64 GB storage | 128 GB | 32 GB | 
| External Memory | No | microSD, up to 128 GB | microSD upto 256GB | 
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| Type | LED-backlit IPS LCD, capacitive touchscreen | IPS Capacitive Touchscreen, Corning Gorilla Glass 4 | Super AMOLED Capacitive Touchscreen, Corning Gorilla Glass 5, Curved Edge Screen, Always-on display | 
| Colors | 16M colors | 16M colors | 16M colors | 
| Size | 4.0 inches | 5.5 inches | 5.5 inches | 
| Resolution | 640 x 1136 pixels (326 ppi) | 1080 x 1920 pixels (401 ppi) | 1440 x 2560 pixels (534 ppi) | 
| Screen-to-Body Ratio | 60.84% | 66.44% | 76.13% | 
| Multi-Touch |  |  |  | 
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| 3.5mm Jack |  |  |  | 
| Radio | No | No | - | 
| Games | Yes + Downloadable | Yes + Downloadable | Yes + Downloadable | 
| Loud Speaker |  |  |  | 
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| Rear Camera | 8 MP, 3264x2448 pixels | 13 MP, 4128 x 3096 pixels | 12 MP, 4608 x 2592 pixels | 
| Flash | dual-LED flash | Dual-LED (Dual Tone) | LED Flash | 
| Features | Auto focus, 1.5 µm pixel size, Simultaneous HD video and image recording, touch focus, geo-tagging, face detection, panorama, HDR | Laser Autofocus, Optical Image Stabilization, Geo-tagging, Touch Focus, Face Detection, Panorama, HDR | Phase Detection Autofocus, Dual Pixel, f/1.7, 1/2.6' Sensor Size, 1 µm Pixel Size, Smart Optical Image Stablization, Geo-tagging, Touch Focus, Face Detection, Auto HDR, Panorama | 
| Video | Yes, 1080p@30fps, 720p@120 fps, video stabilization | 1080p@30fps | 2160p@30fps, 1080p@60fps, 720p@120fps, HDR, dual-video rec. | 
| Front Camera | Yes, 1.2 MP, 720p@30fps, face detection, [Similar] | 5 MP [Similar] | 5 MP, f/1.7, Dual Video Call, Auto HDR [Similar] | 
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| GPRS | Yes | Yes | Yes | 
| Edge | Yes | Yes | Yes | 
| 3G | DC-HSDPA, 42 Mbps; HSDPA, 21 Mbps; HSUPA, 5.76 Mbps, LTE, 100 Mbps; EV-DO Rev. A, up to 3.1 Mbps | HSPA 42.2/5.76 Mbps, LTE Cat4+ 250/50 Mbps | HSPA 42.2/5.76 Mbps, LTE Cat9 450/50 Mbps | 
| Bluetooth | Yes, v4.0 with A2DP | v4.0, A2DP, EDR | v4.2, A2DP, LE, apt-X | 
| Wi-Fi | Wi-Fi 802.11 a/b/g/n, dual-band, Wi-Fi hotspot | Wi-Fi 802.11 a/b/g/n/ac, Wi-Fi Direct, hotspot | Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct, hotspot | 
| USB | Yes, Lightning Port | microUSB v2.0 | microUSB v2.0, USB Host | 
| GPS | Yes, with A-GPS support and GLONASS | Yes, with A-GPS, GLONASS, Beidou | Yes, with A-GPS, GLONASS, BDS | 
| Browser | HTML (Safari) | HTML5 | HTML5 | 
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| Internal | 16/32/64 GB storage, 1 GB RAM | 128 GB, 4 GB RAM | 32 GB, 4 GB RAM | 
| Expandable Storage | No | microSD, up to 128 GB | microSD upto 256GB | 
| USB OTG | - | - | Supported | 
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| Fingerprint |  |  |  | 
| Proximity Sensor |  |  |  | 
| Accelerometer Sensor |  |  |  | 
| Barometer Sensor |  |  |  | 
| Heart-rate Sensor |  |  |  | 
| NFC |  |  |  | 
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| Type | Non-removable Li-Ion Battery | Non-removable Li-Po Battery | Non-removable Li-Po Battery | 
| Capacity | 1440 mAh | 3000 mAh | 3600 mAh | 
| Stand by | Up to 250 h | - | - | 
| Talk Time | Up to 10 h | - | - |