On this page we compare specs HTC Desire 21s Qualcomm SM7125 Snapdragon 720G (8 nm) with HTC One M9 plus Octa-core 2.2 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 Desire 21s | HTC One M9 plus |
|---|
| Operating system | Android v11 | Android 5.2 (Lollipop), upgradable to 6 (Marshmallow); Sense UI 7 |
| Processor | Qualcomm SM7125 Snapdragon 720G (8 nm) | Octa-core 2.2 GHz Cortex-A53 |
| Chipset | | Mediatek MT6795T Helio X10 (28 nm) |
| RAM | 8 GB | |
| GPU | | PowerVR G6200 |
| Internal Storage | 128 GB | |
| Internal memory | | 32 GB, 3 GB RAM |
| External memory | | microSD, up to 256 GB (dedicated slot) |
| Display | HTC Desire 21s | HTC One M9 plus |
|---|
| Type | IPS LCD | Super LCD3 |
| Size | 6.6 inches | 5.2" inc |
| Resolution | 720 x 1600 Pixels | 1440 x 2560 px |
| Touchscreen | Yes, Capacitive Touchscreen, Multi-touch | capacitive touchscreen |
| Aspect ratio | 20:9 | |
| Screen-to-Body Ratio | | 68.6% |
| Display area | | 74.5 cm2 |
| Display aspect ratio | | 16:9 (height:width) |
| Pixel Density | 270 ppi | 565 PPI |
| Colors | | 16M |
| Connectivity | HTC Desire 21s | HTC One M9 plus |
|---|
| Network support | 4G , 3G, 2G | |
| Dual SIM | Dual SIM, GSM GSM | |
| SIM size | SIM1: Nano, SIM2: Nano | |
| 2G Network | | GSM 850 / 900 / 1800 / 1900 |
| USB connectivity | Mass storage device, USB charging | |
| 3G Network | | HSDPA 850 / 900 / 1900 / 2100 |
| 4G Network | | LTE band 1(2100), 3(1800), 5(850), 7(2600), 8(900), 28(700), 38(2600), 39(1900), 40(2300), 41(2500) |
| Wi-Fi | Yes, Wi-Fi 802.11, b/g/n | Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct, DLNA, hotspot |
| Network | | GSM / HSPA / LTE |
| SIM card | | Nano-SIM |
| Bluetooth | Yes, v5.0 | 4.1, A2DP, aptX |
| Edge | | Yes |
| GPRS | | Yes |
| GPS | Yes, with A-GPS, Glonass | Yes, with A-GPS, GLONASS, BDS |
| NFC | | Yes (market/operator dependent) |
| Speed | | HSPA 42.2/21.1 Mbps, LTE-A (2CA) Cat6 300/50 Mbps |
| USB | | microUSB 2.0 (MHL 2 TV-out), USB Host |
| Camera | HTC Desire 21s | HTC One M9 plus |
|---|
| Front camera resolution | 20 MP Primary Camera | |
| Camera features | Digital Zoom, Auto Flash, Face detection, Touch to focus | |
| Flash | Yes, LED Flash | |
| Autofocus | Yes | |
| Video recording | Yes | |
| Main camera | | 20 MP, Dual |
| Specs | | 20 MP, f/2.2, 28mm (wide), 1/2.4', 1.2µm
-2.1 MP, AF |
| Features | | Dual-LED dual-tone flash, HDR, panorama |
| Video | | 2160p@30fps, 1080p@60fps, 720p@120fps, HDR, stereo sound rec. |
| Selfie camera | | 4 MP, Single |
| Multimedia | HTC Desire 21s | HTC One M9 plus |
|---|
| Loudspeaker | Yes | |
| 3.5 mm Jack | | Yes |
| Radio | | Stereo FM radio, RDS |
| Design | HTC Desire 21s | HTC One M9 plus |
|---|
| Height | 164.9 mm | |
| Width | 75.7 mm | |
| Thickness | 9 mm | |
| Colours | Dawn Orange, Twilight Black | |
| Colors | | Gunmetal Gray, Silver Gold, Amber Gold |
| Dimensions | | 151 x 72 x 9.6 mm |
| Weight | 203 grams | 168 g |
| Battery | HTC Desire 21s | HTC One M9 plus |
|---|
| Capacity | 5200 mAh | |
| Type | Lithium Polymer | |
| Battery capacity | | 2840 mAh, Non-removable Li-Po |
| Battery life | | Stand by time- Up to 598 h (2G) / Up to 626 h (3G)
Talking time- Up to 23 h (2G) / Up to 13 h (3G)
|
| Other | HTC Desire 21s | HTC One M9 plus |
|---|
| Fingerprint sensor | Yes | |
| Fingerprint sensor position | Rear | |
| Other sensors | Accelerometer, Gyro, Proximity, Compass | |
| Release date | | 2015, April |
| Sensors | | Fingerprint (front-mounted), accelerometer, gyro, proximity, compass , Infrared port |
