| Local Name | Desire 820 dual sim |
| Technology | GSM / HSPA / LTE |
| 4G Bands | LTE band 1(2100), 3(1800), 7(2600), 8(900), 38(2600), 39(1900), 40(2300), 41(2500) - Asia, India |
| 3G Bands | HSDPA 850 / 900 / 1900 / 2100 - EMEA, Asia | HSDPA 850 / 900 / 2100 - India | TD-SCDMA |
| 2G Bands | GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 |
| Speed | HSPA 42.2/5.76 Mbps, LTE Cat4 150/50 Mbps |
| GPRS | Yes |
| EDGE | Yes |
| Announced | 2014, September |
| Status | Available. Released 2014, November |
| Dimensions | 157.7 x 78.7 x 7.7 mm (6.21 x 3.10 x 0.30 in) |
| Weight | 155 g (5.47 oz) |
| SIM | Dual SIM (Nano-SIM, dual stand-by) |
| Display Type | LCD capacitive touchscreen, 16M colors |
| Screen Size | 5.5 inches (~67.2% screen-to-body ratio) |
| Resolution | 720 x 1280 pixels (~267 ppi pixel density) |
| Mulitouch | Yes |
| Protection | Corning Gorilla Glass 3 | HTC Sense UI 6.0 |
| OS | Android OS, v4.4.2 (KitKat) |
| Chipset | Qualcomm MSM8939 Snapdragon 615 |
| CPU | Quad-core 1.7 GHz Cortex-A53 & quad-core 1.0 GHz Cortex-A53 |
| GPU | Adreno 405 |
| Card Slot | microSD, up to 128 GB (dedicated slot) |
| Internal Memory | 16 GB, 2 GB RAM |
| Primary Camera | 13 MP, autofocus, LED flash |
| Camera Features | Geo-tagging, touch focus, face detection, HDR |
| Video | 1080p@30fps, 720p@60fps |
| Secondary Camera | 8 MP, 1080p |
| Alert Types | Vibration; MP3, WAV ringtones |
| Loudspeaker | Yes, with stereo speakers |
| 3.5mm Jack | Yes |
| WLAN | Wi-Fi 802.11 a/b/g/n, dual-band, Wi-Fi Direct, DLNA, hotspot |
| Bluetooth | v4.0, A2DP, apt-X |
| GPS | Yes, with A-GPS, GLONASS |
| NFC | Yes |
| Radio | FM radio |
| USB | microUSB v2.0, USB Host |
| Sensors | Accelerometer, proximity, compass |
| Messaging | SMS (threaded view), MMS, Email, Push Email |
| Browser | HTML5 |
| Java | No |
| Features Summary | MP4/H.264/WMV player, MP3/eAAC+/WMA/WAV player, Document viewer, Photo/video editor |
| Battery | Non-removable Li-Po 2600 mAh battery |
| Stand By | Up to 424 h (3G) |
| Talk Time | Up to 22 h 40 min (3G) |
| Colors | Marble White, Tuxedo Grey, Santorini White, Milky-way Grey, Tangerine White, Saffron Grey, Flamingo Grey, Blue Misty, Monarch Orange |
| SAR EU | 0.14 W/kg (head) |
