HTC Desire 820S vs HTC Desire 820
| Type | Touch | Touch |
| Dimensions | 157.70 x 78.74 x 7.74 mm | 157.70 x 78.74 x 7.74 mm |
| Weight | 155.00 g | 155.00 g |
| Display size | 5.50" | 5.50" |
| Display | Color / TFT 16M colors 720 x 1280 px (5.50") 267 ppi | Color / LCD 16M colors 720 x 1280 px (5.50") 267 ppi |
| Display protection | ||
| Additional display | ||
| Protection of the secondary display | ||
| Talk time (max.) | 3G: 1344 min. (22.4 h) | 3G: 1344 min. (22.4 h) |
| Stand-by (max.) | 3G: 424 h. (17.7 days) | 3G: 424 h. (17.7 days) |
| Standard battery | Li-Po 2600 mAhBuy powerbank
| Li-Po 2600 mAhBuy powerbank
|
| Quick battery charging | ||
| Wireless battery charging | ||
| Internal memory | 16 GB | 16 GB |
| RAM memory | 2 GB | 2 GB |
| Memory cards | microSD, microSDHC, microSDXC up to 128 GBBuy memory card | microSD, microSDHC, microSDXC up to 128 GBBuy memory card |
| Operating system | Android 4.4 KitKat | Android 4.4.2 KitKat |
| Interface | - | Sense |
| Processor | MediaTek MT6752 | Qualcomm Snapdragon 615 8939 |
| Processor clock | 1700 MHz | 1500 MHz |
| GPU | ARM Mali-T760 | Adreno 405 |
| Touchscreen | ||
| DualSIM | ||
| SIM cards standard | DualSIM(nanoSIM, nanoSIM) | SingleSIM(nanoSIM) |
| Hybrid DualSIM | nd | |
| Announced | 4Q 2014 | 3Q 2014 |
| Other names | - | - |
| GSM frequencies | 850 900 1800 1900 | 850 900 1800 1900 |
| UMTS | 900 2100 | 850 900 1900 2100 |
| LTE standard | FDD LTE: 2600, 2100, 1800, 900 TDD LTE: 2600, 2300, 1900 | FDD LTE: 2600, 2500, 2300, 2100, 1900, 1800, 900 |
| CDMA | ||
| Standard TD-SCDMA | 1900 2000 | 1900 2000 |
| UMA |

