Comparison between:
- HTC Desire 620
- Sony Xperia Z3
- Lenovo K3 Note
Brand and model
Information about the brand, model and model alias (if any) of a specific device.
| HTC Desire 620 | Sony Xperia Z3 | Lenovo K3 Note | |
 |  Prices |  | |
| Model alias | - | D6603 D6616 D6633 D6643 D6653 L55t L55u | K50-a40 K50-t5 |
Design
Information about the dimensions and weight of the device, shown in different measurement units. Body materials, available colors, certifications.
| Width | 72.7 mm 7.27 cm 0.239 ft 2.862 in | 72 mm 7.2 cm 0.236 ft 2.835 in | 76.2 mm 7.62 cm 0.25 ft 3 in |
| Height | 150.1 mm 15.01 cm 0.492 ft 5.909 in | 146 mm 14.6 cm 0.479 ft 5.748 in | 152.6 mm 15.26 cm 0.501 ft 6.008 in |
| Thickness | 9.6 mm 0.96 cm 0.031 ft 0.378 in | 7.3 mm 0.73 cm 0.024 ft 0.287 in | 7.99 mm 0.799 cm 0.026 ft 0.315 in |
| Weight | 160 g 0.35 lbs 5.64 oz | 152 g 0.34 lbs 5.36 oz | 150 g 0.33 lbs 5.29 oz |
| Volume | 104.76 cm³ 6.36 in³ | 76.74 cm³ 4.66 in³ | 92.91 cm³ 5.64 in³ |
| Colors | Black White Blue Gray | Black White Green Brown | White Yellow Black |
| Body materials | Plastic | Aluminium alloy Glass | Plastic |
| Certification | - | IP65 IP68 | - |
SIM card
The Subscriber Identity Module (SIM) is used in mobile devices for storing data authenticating the subscribers of mobile services.
| SIM card type | Micro-SIM | Nano-SIM | Micro-SIM |
| Number of SIM cards | 2 | 1 | 2 |
| Features | Dual SIM stand-by (Both cards are active. When one is busy, the other is not active) | Dual SIM optional (A variant of the model with two SIM card slots is available) | Dual SIM stand-by (Both cards are active. When one is busy, the other is not active) |
| - | D6633 - Dual SIM | - |
Networks
A mobile (cellular) network is a radio system, which allows a large number of mobile devices to communicate with each other.
| GSM | GSM 850 MHz GSM 900 MHz GSM 1800 MHz GSM 1900 MHz | GSM 850 MHz GSM 900 MHz GSM 1800 MHz GSM 1900 MHz | GSM 900 MHz GSM 1800 MHz GSM 1900 MHz |
| TD-SCDMA | TD-SCDMA 1900 MHz TD-SCDMA 2000 MHz | TD-SCDMA 1880-1920 MHz (L55t) TD-SCDMA 2010-2025 MHz (L55t) | TD-SCDMA 1880-1920 MHz TD-SCDMA 2010-2025 MHz |
| UMTS | UMTS 850 MHz UMTS 900 MHz UMTS 1900 MHz UMTS 2100 MHz | UMTS 850 MHz UMTS 900 MHz UMTS 1700/2100 MHz UMTS 1900 MHz UMTS 2100 MHz | UMTS 850 MHz UMTS 900 MHz UMTS 1900 MHz UMTS 2100 MHz |
| LTE | LTE 900 MHz LTE 1800 MHz LTE 2100 MHz LTE 2600 MHz LTE-TDD 1900 MHz (B39) LTE-TDD 2300 MHz (B40) LTE-TDD 2500 MHz (B41) LTE-TDD 2600 MHz (B38) | LTE 700 MHz Class 12 (D6616) LTE 700 MHz Class 17 (D6603; D6633; D6643) LTE 800 MHz (D6603; D6633; D6643) LTE 850 MHz (D6603; D6633; D6643; D6653) LTE 900 MHz (D6603; D6633; D6643; D6653) LTE 1800 MHz (D6603; D6633; D6643; D6653; L55t; L55u) LTE 1900 MHz (D6616) LTE 2600 MHz (D6603; D6633; D6643; D6653; L55t) LTE 700 MHz Class 13 (D6603) LTE 700 MHz (B28) (D6653) LTE 1700/2100 MHz (D6603; D6633; D6643) LTE 2100 MHz (D6603; D6633; D6643; D6653; L55t; L55u) LTE-TDD 1900 MHz (B39) (L55t) LTE-TDD 2300 MHz (B40) (L55t; L55u) LTE-TDD 2500 MHz (B41) (L55t; L55u) LTE-TDD 2600 MHz (B38) (L55t) | LTE 1800 MHz LTE 2100 MHz LTE 2600 MHz LTE-TDD 1900 MHz (B39) LTE-TDD 2300 MHz (B40) LTE-TDD 2600 MHz (B38) |
Mobile network technologies and bandwidth
Communication between devices within mobile networks is realized via various generations of network technologies, which provide different bandwidth.
| Mobile network technologies | UMTS EDGE GPRS HSPA+ LTE Cat 4 TD-SCDMA TD-HSDPA | UMTS EDGE GPRS HSPA+ LTE Cat 4 TD-SCDMA TD-HSDPA | UMTS EDGE GPRS HSPA+ LTE Cat 4 TD-SCDMA TD-HSDPA |
Operating system
Operating system is the system software, which manages and controls the functioning of the hardware components of the device.
| Operating system (OS) | Android 4.4.4 KitKat Android 5.1.1 Lollipop | Android 4.4.4 KitKat Android 5.0.2 Lollipop Android 5.1.1 Lollipop Android 6.0 Marshmallow | Android 5.0 Lollipop Android 6.0 Marshmallow |
| User interface (UI) | Sense | - | Vibe 2.5 |
System on Chip (SoC)
A system on a chip (SoC) includes into a single chip some of the main hardware components of the mobile device.
| SoC | Qualcomm Snapdragon 410 MSM8916 | Qualcomm Snapdragon 801 MSM8974AC | MediaTek MT6752 |
| Process technology | 28 nm | 28 nm | 28 nm |
| CPU | ARM Cortex-A53 | Krait 400 | ARM Cortex-A53 |
| CPU bits | 64 bit | 32 bit | 64 bit |
| Instruction set | ARMv8 | ARMv7 | ARMv8-A |
| Level 0 cache memory (L0) | 4 KB + 4 KB | 4 KB + 4 KB | - |
| Level 1 cache memory (L1) | 16 KB + 16 KB | 16 KB + 16 KB | 32 KB + 32 KB |
| Level 2 cache memory (L2) | 2048 KB 2 MB | 2048 KB 2 MB | 512 KB 0.5 MB |
| CPU cores | 4 | 4 | 8 |
| CPU frequency | 1200 MHz | 2500 MHz | 1700 MHz |
| GPU | Qualcomm Adreno 306 | Qualcomm Adreno 330 | ARM Mali-T760 MP2 |
| GPU cores | - | 4 | 2 |
| GPU frequency | 400 MHz | 578 MHz | 700 MHz |
| RAM capacity | 1 GB | 3 GB | 2 GB |
| RAM type | LPDDR3 | LPDDR3 | LPDDR3 |
| RAM channels | Single channel | Double channel | Single channel |
| RAM frequency | 533 MHz | 933 MHz | 800 MHz |
Storage
Every mobile device has a built-in storage (internal memory) with a fixed capacity.
| Storage | 8 GB | 16 GB 32 GB | 16 GB |
| - | eMMC | - |
Memory cards
Memory cards are used in mobile devices for expanding their external storage capacity.
| Types | microSD microSDHC microSDXC | microSD microSDHC microSDXC | microSD microSDHC microSDXC |
Display
The display of a mobile device is characterized by its technology, resolution, pixel density, diagonal length, color depth, etc.
| Type/technology | TFT | IPS | IPS |
| Diagonal size | 5 in 127 mm 12.7 cm | 5.2 in 132.08 mm 13.21 cm | 5.5 in 139.7 mm 13.97 cm |
| Width | 2.45 in 62.26 mm 6.23 cm | 2.55 in 64.75 mm 6.48 cm | 2.7 in 68.49 mm 6.85 cm |
| Height | 4.36 in 110.69 mm 11.07 cm | 4.53 in 115.12 mm 11.51 cm | 4.79 in 121.76 mm 12.18 cm |
| Aspect ratio | 1.778:1 16:9 | 1.778:1 16:9 | 1.778:1 16:9 |
| Resolution | 720 x 1280 pixels | 1080 x 1920 pixels | 1080 x 1920 pixels |
| Pixel density | 294 ppi 115 ppcm | 424 ppi 166 ppcm | 401 ppi 157 ppcm |
| Color depth | 24 bit 16777216 colors | 24 bit 16777216 colors | 24 bit 16777216 colors |
| Display area | 63.36 % | 71.14 % | 71.95 % |
| Other features | Capacitive Multi-touch | Capacitive Multi-touch Scratch resistant | Capacitive Multi-touch Scratch resistant |
| - | Triluminos display for mobile X-Reality display | Dragontrail glass OGS (One Glass Solution) |
Sensors
Different sensors measure different physical quantities and convert them into signals recognizable by the mobile device.
| Sensors | Proximity Light Accelerometer | Proximity Light Accelerometer Compass Gyroscope Barometer | Proximity Light Accelerometer Compass Gyroscope |
| - | Step detector Step counter | - |
Rear camera
The primary camera of the mobile device is usually placed on its back and can be combined with one or more additional cameras.
| Sensor model | - | Sony IMX220 Exmor RS | OmniVision OV13850 |
| Sensor type | CMOS BSI | CMOS | PureCel |
| Sensor size | - | 6.17 x 4.55 mm 0.3 in | 4.82 x 3.68 mm 0.24 in |
| Pixel size | - | 1.176 µm 0.001176 mm | 1.157 µm 0.001157 mm |
| Crop factor | - | 5.64 | 7.14 |
| ISO | - | 50 - 12800 | - |
| Aperture | - | f/2 | f/2 |
| Focal length and 35 mm equivalent | - | 4.43 mm 25 mm *(35 mm / full frame) | - |
| Number of lenses | - | - | 5 |
| Flash type | LED | LED | Dual LED |
| Image resolution | 3264 x 2448 pixels 7.99 MP | 5248 x 3936 pixels 20.66 MP | 4160 x 3120 pixels 12.98 MP |
| Video resolution | 1920 x 1080 pixels 2.07 MP | 3840 x 2160 pixels 8.29 MP | 1920 x 1080 pixels 2.07 MP |
| Video FPS | 30 fps | 30 fps | 30 fps |
| Features | Autofocus Digital zoom Geotagging Panorama HDR Touch focus Face detection White balance settings ISO settings Exposure compensation Scene mode | Autofocus Continuous shooting Digital zoom Digital image stabilization Geotagging Panorama HDR Touch focus Face detection White balance settings ISO settings Exposure compensation Self-timer | Autofocus Continuous shooting Digital zoom Digital image stabilization Geotagging Panorama HDR Touch focus Face detection White balance settings ISO settings Exposure compensation Self-timer Scene mode |
| - | 1080p @ 60 fps 720p @ 120 fps G lens | - |
Front camera
Modern smartphones have one or more front cameras and their positioning has led to various design concepts – pop-up camera, rotating camera, notch, punch hole, under-display camera, etc.
| Sensor model | - | Sony Exmor R | - |
| Aperture | - | - | f/2.4 |
| Image resolution | 2560 x 1920 pixels 4.92 MP | 1920 x 1080 pixels 2.07 MP | 2560 x 1920 pixels 4.92 MP |
| Video resolution | 1920 x 1080 pixels 2.07 MP | 1920 x 1080 pixels 2.07 MP | 1280 x 720 pixels 0.92 MP |
| Video FPS | 30 fps | 30 fps | 30 fps |
Audio
Information about the type of speakers and the audio technologies supported by the device.
| Speaker | Loudspeaker Earpiece Stereo speakers | Loudspeaker Earpiece Stereo speakers | Loudspeaker |
| - | D6633 - HAC (M4/T3) Hearing Aid Compatibility D6603; D6616; D6653 - HAC (M3/T3) Hearing Aid Compatibility | - |
Radio
The radio in a mobile device is a built-in FM radio receiver.
| Radio | Yes | Yes | Yes |
| - | RDS | - |
Tracking/Positioning
Information about the positioning and navigation technologies supported by the device.
| Tracking/Positioning | GPS A-GPS GLONASS | GPS A-GPS GLONASS BeiDou | GPS A-GPS GLONASS |
Wi-Fi
Wi-Fi is a technology that provides wireless data connections between various devices within a short range.
| Wi-Fi | 802.11b 802.11g 802.11n Wi-Fi Hotspot | 802.11a 802.11b 802.11g 802.11n 802.11n 5GHz 802.11ac Dual band Wi-Fi Hotspot Wi-Fi Direct | 802.11a 802.11b 802.11g 802.11n Wi-Fi Hotspot Wi-Fi Direct |
Bluetooth
Bluetooth is a standard for secure wireless data transfer between different types of devices over short distances.
| Version | 4.0 | 4.0 | 4.1 |
| Features | A2DP | A2DP AVRCP DIP GAP GATT HDP HFP HID HSP MAP OPP PAN PBAP SPP | A2DP LE |
USB
The Universal Serial Bus (USB) is an industry standard that allows different electronic devices to exchange data.
| Connector type | Micro USB | Micro USB | Micro USB |
| Version | 2.0 | 2.0 | 2.0 |
| Features | Charging Mass storage | Charging Host Mass storage On-The-Go | Charging Mass storage On-The-Go |
HDMI
The High-Definition Multimedia Interface (HDMI) is considered to be the digital alternative of the analog audio/video interface standards.
| HDMI | - | Micro USB to HDMI MHL adapter | - |
Headphone jack
The headphone jack is an audio phone connector, a.k.a. an audio jack. The most widely used one in mobile devices is the 3.5 mm headphone jack.
| Headphone jack | Yes | Yes | Yes |
Connectivity
Information about other important connectivity technologies supported by the devices.
| Connectivity | Computer sync OTA sync Tethering | Computer sync OTA sync Tethering DLNA NFC ANT+ | Computer sync OTA sync Tethering |
Browser
A web browser is a software application for accessing, fetching, displaying and navigating through information on the World Wide Web.
| Browser | HTML HTML5 CSS 3 | HTML HTML5 CSS 3 | HTML HTML5 CSS 3 |
Audio file formats/codecs
Mobile devices support various audio file formats and codecs, which respectively store and code/decode digital audio data.
| Audio file formats/codecs | AAC AMR AMR-WB aptX eAAC+ M4A MIDI MP3 OGG WMA WAV | 3GPP AAC AAC+ AMR AMR-WB aptX eAAC+ FLAC MIDI MP3 OGG WMA WAV Vorbis | AAC AMR eAAC+ FLAC MIDI MP3 WMA WAV |
Video file formats/codecs
Mobile devices support various video file formats and codecs, which respectively store and code/decode digital video data.
| Video file formats/codecs | 3GPP 3GPP2 AVI H.263 H.264 MP4 WMV | 3GPP AVI DivX H.263 H.264 H.265 MKV MPEG-4 VP8 VP9 WebM WMV Xvid M4V | 3GPP AVI H.263 H.264 MP4 WMV |
Battery
The batteries of mobile devices differ in capacity and technology. They provide the electrical charge needed for the functioning of the devices.
| Capacity | 2100 mAh | 3100 mAh | 3000 mAh |
| Type | Li-Polymer | Li-Ion | Li-Polymer |
| 2G talk time | 19 h 12 min 19.2 h 1152 min 0.8 days | 14 h 840 min 0.6 days | - |
| 2G stand-by time | 525 h 31500 min 21.9 days | 890 h 53400 min 37.1 days | - |
| 3G talk time | 19 h 12 min 19.2 h 1152 min 0.8 days | 16 h 960 min 0.7 days | 36 h 2160 min 1.5 days |
| 3G stand-by time | 525 h 31500 min 21.9 days | 740 h 44400 min 30.8 days | 750 h 45000 min 31.3 days |
| 4G stand-by time | - | 540 h 32400 min 22.5 days | - |
| Charger output power | - | - | 5 V / 2 A |
| Features | Removable | Non-removable | Removable |
Specific Absorption Rate (SAR)
The SAR rating shows the amount of electromagnetic radiation absorbed by the human body when using a mobile device, expressed in W/kg.
| Head SAR (EU) | - | 0.691 W/kg | - |
| Body SAR (EU) | - | 0.712 W/kg | - |
| Head SAR (USA) | 0.362 W/kg | 0.885 W/kg | 1.59 W/kg |
| Body SAR (USA) | 0.534 W/kg | 1.501 W/kg | 0.688 W/kg |
Additional features
Some devices have additional features, different from the standard ones above, but equally important and worth mentioning.
| Additional features | - | D6653 - SAR (Specific Absorption Rate) EU: head - 0.620 W/kg; body - 0.645 W/kg D6653 - SAR (Specific Absorption Rate) US: head - 0.798 W/kg; body - 1.437 W/kg | - |
| HTC Desire 620 | Sony Xperia Z3 | Lenovo K3 Note |