Phone Comparison - Asus Google Nexus 7 vs Google Nexus 9 vs Samsung Galaxy A40
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| Manufacturer | Asus | HTC | Samsung |
| Announced | June 2012 | October 2014 | March 2019 |
| Status | Available - July 2012 | Available - October 2014 | Coming Soon - April 2019 |
| Colors | Black | Indigo Black, Lunar White, Sand | Black, White, Blue, Coral |
| Form Factor | Candybar | Candybar | Candybar |
| Dimension |
198.5 x 120 x 10.5 mm (7.81 x 4.72 x 0.41 in) |
228.25 x 153.68 x 7.95 mm (8.99 x 6.05 x 0.31 in) |
144.3 x 69.1 x 7.9 mm (5.68 x 2.72 x 0.31 in) |
| Weight | 340 g (11.99 oz) | 425 g / 436 g (14.99 oz / 15.38 oz) | - |
| SIM Type | - | - | Single SIM (Nano-SIM), Dual SIM (Nano-SIM, dual stand-by) |
| 2G Network | N/A | GSM 850 / 900 / 1800 / 1900 | GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 (dual-SIM model only) |
| 3G Network | N/A | HSDPA 850 / 900 / 1900 / 2100 | HSDPA 850 / 900 / 1900 / 2100 |
| 4G Network | - | LTE 800 / 1800 / 2600 | LTE band 1(2100), 3(1800), 5(850), 7(2600), 8(900), 20(800), 38(2600), 40(2300), 41(2500) |
| Messaging | , Push Mail, EMail, IM | SMS, MMS, EMail, IM | |
| Build Features | - | Dual front-facing speakers with HTC BoomSound | - Fingerprint Sensor |
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| OS | Android OS, v4.1 (Jelly Bean), upgradable to v4.1.2 | Android OS, v5.0 (Lollipop) | Android 9.0 (Pie) |
| Processor | Quad-core 1.3 GHz Cortex-A9, Nvidia Tegra 3 | Quad-core 2.2 GHz Cortex-A15, Nvidia Tegra K1 | Octa-core (2x1.8 GHz Cortex-A73 & 6x1.6 GHz Cortex-A53), Exynos 7885 Octa (14 nm) |
| GPU | ULP GeForce | ULP GeForce Kepler (192 cores) | Mali-G71 |
| RAM | 1 GB | 2 GB | 4 GB |
| Internal Memory | 32 GB storage | 16/32 GB | 64 GB |
| External Memory | No | No | microSD, up to 512 GB (dedicated slot) |
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| Type | LED-backlit IPS LCD capacitive touchscreen | IPS LCD Capacitive Touchscreen, Corning Gorilla Glass 3 | Super AMOLED Capacitive Touchscreen |
| Colors | 16M colors | 16M colors | 16M colors |
| Size | 7.0 inches | 8.9 inches | 5.9 inches |
| Resolution | 800 x 1280 pixels (216 ppi) | 2048 x 1536 pixels (288 ppi) | 1080 x 2280 pixels (428 ppi) |
| Screen-to-Body Ratio | 59.45% | 69.76% | 86.97% |
| Multi-Touch |  |
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| 3.5mm Jack | |
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| Radio | No | No | FM radio |
| Games | Yes + Downloadable | Yes + Downloadable | Yes + Downloadable |
| Loud Speaker | |
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| Rear Camera | 1.2 MP | 8 MP, 3264 x 2448 pixels | 16 MP + 5 MP |
| Flash | No | LED flash | LED Flash |
| Features | Video-calling | Auto focus, Geo-tagging, Touch Focus, Face Detection, OIS | 16 MP, f/2.0, PDAF 5 MP, f/2.2, 12mm, (ultrawide) Panorama, HDR |
| Video | Yes, 720p | Yes, 1080p@30fps | 2160p@30fps, 1080p@30fps |
| Front Camera | No [Similar] | Yes, 1.6 MP [Similar] | 25 MP, 1080p@30fps [Similar] |
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| GPRS | No | Yes | Yes |
| Edge | No | Yes | Yes |
| 3G | N/A | HSDPA, 42.2 Mbps; HSUPA, 5.76 Mbps; LTE, Cat4, 50 Mbps UL, 150 Mbps DL | HSPA 42.2/5.76 Mbps, LTE-A (2CA) Cat12 600/150 Mbps |
| Bluetooth | Yes | Yes, v4.0 with A2DP | 4.2, A2DP, LE |
| Wi-Fi | Wi-Fi 802.11 b/g/n | Wi-Fi 802.11 a/b/g/n, dual-band, Wi-Fi Direct, DLNA, Wi-Fi hotspot | Wi-Fi 802.11 a/b/g/n/ac, dual-band, WiFi Direct, hotspot |
| USB | Yes, microUSB v2.0 | Yes, microUSB v2.0 | Type-C 1.0 reversible connector |
| GPS | Yes | Yes, with A-GPS support and GLONASS | Yes, with A-GPS, GLONASS, BDS |
| Browser | HTML, HTML5 | HTML5 | Yes |
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| Internal | 32 GB storage, 1GB RAM | 16/32 GB, 2 GB RAM | 64 GB, 4 GB RAM |
| Expandable Storage | No | No | microSD, up to 512 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 | Standard battery, Li-Ion | Non-removable Li-Po battery | Non-removable Li-Po Battery |
| Capacity | 4325 mAh | 6700 mAh | 3100 mAh |
| Stand by | 300 h | Up to 720 h | - |
| Talk Time | Up to 10 h | Up to 9 h 30 min | - |
