On this page we compare specs HTC Nexus 9 Dual-core 2.3 GHz Denver with HTC Desire 820 Octa-core (4x1.5 GHz Cortex-A53 & 4x1.0 GHz Cortex-A53), we compare external dimensions, compare screens and performance, the amount of RAM and memory for storing media data, battery capacity and characteristics of photo cameras, compare the presence of various sensors and functions.
| Hardware and OS | HTC Nexus 9 | HTC Desire 820 |
|---|
| Operating system | Android 5.0 (Lollipop), upgradable to 7.1.1 (Nougat) | Android 4.4.2 (KitKat), upgradable to 6.1 (Marshmallow); Sense UI 7 |
| Processor | Dual-core 2.3 GHz Denver | Octa-core (4x1.5 GHz Cortex-A53 & 4x1.0 GHz Cortex-A53) |
| Chipset | Nvidia Tegra K1 | Qualcomm MSM8939 Snapdragon 615 (28 nm) |
| GPU | Kepler DX1 | Adreno 405 |
| Internal memory | 16GB (Wi-Fi)/ 32GB (LTE), 2GB RAM | 16 GB, 2 GB RAM |
| External memory | No | microSD, up to 256 GB (dedicated slot) |
| Display | HTC Nexus 9 | HTC Desire 820 |
|---|
| Type | IPS LCD | LCD |
| Size | 8.9 inches, 257.7 cm2 | 5.5" inc |
| Resolution | 1536 x 2048 pixels, 4:3 ratio | 720 x 1280 px |
| Protection | Corning Gorilla Glass 3 | Corning Gorilla Glass 3 |
| Touchscreen | | capacitive touchscreen |
| Screen-to-Body Ratio | | 67.2% |
| Display area | | 83.4 cm2 |
| Display aspect ratio | | 16:9 (height:width) |
| Pixel Density | | 267 PPI |
| Colors | | 16M |
| Main Camera | HTC Nexus 9 | HTC Desire 820 |
|---|
| Camera | 8 MP, AF | |
| Features | LED flash | |
| Video | 1080p@30fps, stereo sound rec. | |
| Selfie camera | HTC Nexus 9 | HTC Desire 820 |
|---|
| Camera | 1.6 MP | |
| Video | 720p | |
| Connectivity | HTC Nexus 9 | HTC Desire 820 |
|---|
| 2G Network | GSM 850 / 900 / 1800 / 1900 | GSM 850 / 900 / 1800 / 1900 |
| 3G Network | HSDPA 850 / 900 / 1700 / 1900 / 2100 | HSDPA 850 / 900 / 1900 / 2100 - EMEA, Asia |
| 4G Network | 1, 2, 3, 4, 5, 7, 8, 20 | LTE band 3(1800), 7(2600), 8(900), 20(800) - Europe |
| Wi-Fi | | Wi-Fi 802.11 a/b/g/n, dual-band, Wi-Fi Direct, DLNA, hotspot |
| Network | | GSM / HSPA / LTE |
| CDMA | 2, 3, 5, 6, 13 - T-Mobile | |
| SIM card | | Nano-SIM |
| Bluetooth | 4.1, A2DP, aptX | 4.0, A2DP, aptX |
| Edge | | Yes |
| GPRS | | Yes |
| GPS | Yes, with A-GPS, GLONASS | Yes, with A-GPS, GLONASS |
| Technology | GSM / HSPA / LTE | |
| NFC | Yes | Yes (optional) |
| Speed | HSPA 42.2/5.76 Mbps, LTE Cat4 150/50 Mbps | HSPA 42.2/5.76 Mbps, LTE Cat4 150/50 Mbps |
| WLAN | Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct, DLNA, hotspot | |
| USB | microUSB 2.0 | microUSB 2.0, USB Host |
| Camera | HTC Nexus 9 | HTC Desire 820 |
|---|
| Main camera | | 13 MP, Single |
| Specs | | 13 MP, f/2.2, 28mm (wide), AF |
| Features | | LED flash, HDR |
| Video | | 1080p@30fps, 720p@60fps |
| Selfie camera | | 8 MP, Single |
| Multimedia | HTC Nexus 9 | HTC Desire 820 |
|---|
| Loudspeaker | Yes, with stereo speakers | |
| 3.5 mm Jack | Yes | Yes |
| Radio | No | FM radio |
| Design | HTC Nexus 9 | HTC Desire 820 |
|---|
| SIM | Nano-SIM | |
| Colors | Indigo Black, Lunar White, Sand | Marble White, Tuxedo Grey, Santorini White, Milky-way Grey, Tangerine White, Saffron Grey, Flamingo Grey, Blue Misty, Monarch Orange |
| Dimensions | 228.2 x 153.7 x 8 mm (8.98 x 6.05 x 0.31 in) | 157.7 x 78.7 x 7.7 mm |
| Weight | 425 g (Wi-Fi) / 436 g (3G/LTE) (14.99 oz) | 155 g |
| Features | HTC Nexus 9 | HTC Desire 820 |
|---|
| Sensors | Accelerometer, gyro, compass | |
| Battery | HTC Nexus 9 | HTC Desire 820 |
|---|
| Type | Li-Po 6700 mAh, non-removable | |
| Stand-by | Up to 720 h (3G) | |
| Talk time | Up to 9 h 30 min (multimedia) (3G) | |
| Battery capacity | | 2600 mAh, Non-removable Li-Po |
| Battery life | | Stand by time- Up to 424 h (3G)
Talking time- Up to 22 h 24 min (3G)
|
| Other | HTC Nexus 9 | HTC Desire 820 |
|---|
| Release date | | 2014, September |
| Sensors | | Accelerometer, proximity, compass |
