| Hardware and OS | HTC Desire 620 | |
| Operating system | Android 4.4.4 (KitKat); Sense UI | |
| Processor | Quad-core 1.2 GHz Cortex-A53 | |
| Chipset | Qualcomm MSM8916 Snapdragon 410 (28 nm) | |
| Internal memory | 8GB 1GB RAM | |
| External memory | microSDXC (dedicated slot) | |
| GPU | Adreno 306 | |
| Display | HTC Desire 620 | other phones |
| Size | 5.0 inches, 68.9 cm2 | |
| Resolution | 720 x 1280 pixels, 16:9 ratio | |
| Type | Super LCD capacitive touchscreen, 16M colors | |
| Main Camera | HTC Desire 620 | other phones |
| Camera | 8 MP, f/2.4, AF | |
| Features | LED flash, panorama | |
| Video | 1080p@30fps | |
| Selfie camera | HTC Desire 620 | other phones |
| Camera | 5 MP | |
| Video | 1080p@30fps | |
| Connectivity | HTC Desire 620 | other phones |
| 2G Network | GSM 900 / 1800 / 1900 - SIM 1 & SIM 2 (dual-SIM model only) | |
| 3G Network | HSDPA 850 / 900 / 1900 / 2100 | |
| 4G Network | LTE band 1(2100), 3(1800), 7(2600), 8(900), 38(2600), 39(1900), 40(2300), 41(2500) | |
| Bluetooth | 4.0, A2DP, aptX | |
| CDMA | HSDPA 850 / 900 / 2100 - Sweden | |
| GPS | Yes, with A-GPS, GLONASS | |
| Speed | HSPA 42.2/5.76 Mbps, LTE Cat4 150/50 Mbps | |
| Technology | GSM / HSPA / LTE | |
| USB | microUSB 2.0 | |
| WLAN | Wi-Fi 802.11 b/g/n, DLNA, hotspot | |
| Multimedia | HTC Desire 620 | other phones |
| 3.5 mm Jack | Yes | |
| Loudspeaker | Yes, with stereo speakers | |
| Radio | FM radio | |
| Battery | HTC Desire 620 | other phones |
| Capacity | Removable Li-Po 2100 mAh battery | |
| Stand-by | Up to 525 h (3G) | |
| Talk time | Up to 20 h (3G) | |
| Design | HTC Desire 620 | other phones |
| Colors | Blue, Black, Gray, White | |
| Dimensions | 150.1 x 72.7 x 9.6 mm (5.91 x 2.86 x 0.38 in) | |
| Weight | 160 g (5.64 oz) | |
| SIM | Single SIM (Micro-SIM) or Dual SIM (Micro-SIM, dual stand-by) | |
| Features | HTC Desire 620 | other phones |
| Sensors | Accelerometer, proximity | |