Comparison between:
- Huawei Ascend Y550
- Samsung Galaxy A21s
Brand and model
Information about the brand, model and model alias (if any) of a specific device.
| Huawei Ascend Y550 | Samsung Galaxy A21s | |
 |  | |
| Model alias | - | SM-A217F SM-A217F/DS |
Design
Information about the dimensions and weight of the device, shown in different measurement units. Body materials, available colors, certifications.
| Width | 68 mm 6.8 cm 0.223 ft 2.677 in | 75.3 mm 7.53 cm 0.247 ft 2.965 in |
| Height | 133 mm 13.3 cm 0.436 ft 5.236 in | 163.7 mm 16.37 cm 0.537 ft 6.445 in |
| Thickness | 9.5 mm 0.95 cm 0.031 ft 0.374 in | 8.9 mm 0.89 cm 0.029 ft 0.35 in |
| Weight | 153 g 0.34 lbs 5.4 oz | 192 g 0.42 lbs 6.77 oz |
| Volume | 85.92 cm³ 5.22 in³ | 109.71 cm³ 6.66 in³ |
| Colors | White Gray Red Blue | Black White Blue Red |
| Body materials | Plastic | Plastic |
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 |
| Number of SIM cards | 1 | 1 |
| 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) |
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 (B5) GSM 900 MHz (B8) GSM 1800 MHz (B3) GSM 1900 MHz (B2) |
| UMTS | UMTS 850 MHz UMTS 900 MHz UMTS 1900 MHz UMTS 2100 MHz | UMTS 850 MHz (B5) UMTS 900 MHz (B8) UMTS 1900 MHz (B2) UMTS 2100 MHz (B1) |
| LTE | LTE 800 MHz LTE 900 MHz LTE 1800 MHz LTE 2100 MHz | LTE-FDD 800 MHz (B20) LTE-FDD 850 MHz (B5) LTE-FDD 900 MHz (B8) LTE-FDD 1800 MHz (B3) LTE-FDD 2100 MHz (B1) LTE-FDD 2600 MHz (B7) LTE-TDD 2300 MHz (B40) LTE-TDD 2500 MHz (B41) 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 | UMTS EDGE HSPA+ LTE Cat 4 |
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 4.4.2 KitKat | Android 10 |
| User interface (UI) | Emotion 2.3 | One UI 2.0 |
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) | Samsung Exynos 850 (S5E3830) |
| Process technology | 28 nm | 8 nm |
| CPU | 4x 1.2 GHz ARM Cortex-A53 | 8x 2.0 GHz ARM Cortex-A55 |
| CPU bits | 64 bit | 64 bit |
| Instruction set | ARMv8-A | ARMv8.2-A |
| Level 0 cache memory (L0) | 4 KB + 4 KB | - |
| Level 1 cache memory (L1) | 16 KB + 16 KB | - |
| Level 2 cache memory (L2) | 2048 KB 2 MB | - |
| CPU cores | 4 | 8 |
| CPU frequency | 1200 MHz | 2000 MHz |
| GPU | Qualcomm Adreno 306 | ARM Mali-G52 MP1 |
| GPU cores | - | 1 |
| GPU frequency | 400 MHz | - |
| RAM capacity | 1 GB | 3 GB 4 GB 6 GB |
| RAM type | LPDDR2/LPDDR3 | LPDDR4X |
| RAM channels | Single channel | Double channel |
| RAM frequency | 533 MHz | 1866 MHz |
Storage
Every mobile device has a built-in storage (internal memory) with a fixed capacity.
| Storage | 4 GB | 32 GB 64 GB 128 GB |
| - | eMMC 5.1 |
Memory cards
Memory cards are used in mobile devices for expanding their external storage capacity.
| Types | microSD microSDHC | 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 | IPS | PLS |
| Diagonal size | 4.5 in 114.3 mm 11.43 cm | 6.5 in 165.1 mm 16.51 cm |
| Width | 2.2 in 56 mm 5.6 cm | 2.67 in 67.75 mm 6.78 cm |
| Height | 3.92 in 99.64 mm 9.96 cm | 5.93 in 150.56 mm 15.06 cm |
| Aspect ratio | 1.779:1 | 2.222:1 |
| Resolution | 480 x 854 pixels | 720 x 1600 pixels |
| Pixel density | 218 ppi 85 ppcm | 270 ppi 106 ppcm |
| Color depth | 24 bit 16777216 colors | 24 bit 16777216 colors |
| Display area | 61.9 % | 83.02 % |
| Other features | Capacitive Multi-touch | Capacitive Multi-touch Scratch resistant |
| - | Infinity-O Display |
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 Fingerprint Hall |
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 type | - | CMOS |
| Aperture | - | f/2 |
| Flash type | LED | LED |
| Image resolution | 2592 x 1944 pixels 5.04 MP | 8000 x 6000 pixels 48 MP |
| Video resolution | 1280 x 720 pixels 0.92 MP | 1920 x 1080 pixels 2.07 MP |
| Video FPS | 30 fps | 30 fps |
| Features | Autofocus Digital zoom Geotagging Panorama Touch focus Face detection | Autofocus Continuous shooting Digital zoom Geotagging Panorama HDR Touch focus Face detection White balance settings ISO settings Exposure compensation Self-timer Scene mode |
| - | Secondary rear camera - 8 MP (ultra-wide angle) Aperture size - f/2.2 (#2) Third rear camera - 2 MP (macro) Aperture size - f/2.4 (#3) Fourth rear camera - 2 MP (depth-sensing) Aperture size - f/2.4 (#4) |
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 format | - | 1/3.1" |
| Pixel size | - | 1.12 µm 0.001120 mm |
| Aperture | - | f/2.2 |
| Focal length and 35 mm equivalent | - | 2.61 mm 25 mm *(35 mm / full frame) |
| Image resolution | - | 4160 x 3120 pixels 12.98 MP |
| Video resolution | - | 1920 x 1080 pixels 2.07 MP |
| Video FPS | - | 30 fps |
| Features | - | Face unlock |
| 2 MP | - |
Audio
Information about the type of speakers and the audio technologies supported by the device.
| Speaker | Loudspeaker Earpiece | Loudspeaker Earpiece |
Radio
The radio in a mobile device is a built-in FM radio receiver.
| Radio | Yes | Yes |
Tracking/Positioning
Information about the positioning and navigation technologies supported by the device.
| Tracking/Positioning | GPS A-GPS GLONASS | GPS A-GPS GLONASS BeiDou |
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 Wi-Fi Display |
Bluetooth
Bluetooth is a standard for secure wireless data transfer between different types of devices over short distances.
| Version | 4.0 | 5.0 |
| Features | A2DP EDR LE | A2DP AVRCP DIP HFP HID HSP MAP OPP PAN PBAP HOGP |
USB
The Universal Serial Bus (USB) is an industry standard that allows different electronic devices to exchange data.
| Connector type | Micro USB | USB Type-C |
| Version | 2.0 | 2.0 |
| Features | Charging Mass storage | Charging Mass storage On-The-Go |
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 |
Connectivity
Information about other important connectivity technologies supported by the devices.
| Connectivity | Computer sync OTA sync Tethering DLNA NFC | Computer sync OTA sync Tethering NFC VoLTE |
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 |
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 eAAC+ MIDI MP3 OGG WMA WAV | AAC AMR AMR-WB eAAC+ FLAC M4A MIDI MP3 OGG 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 AVI H.263 H.264 MP4 Xvid | 3GPP 3GPP2 AVI Flash Video H.263 H.264 H.265 MKV MP4 VC-1 VP8 VP9 WebM WMV WMV7 WMV8 Xvid |
Battery
The batteries of mobile devices differ in capacity and technology. They provide the electrical charge needed for the functioning of the devices.
| Capacity | 2000 mAh | 5000 mAh |
| Type | Li-Ion | Li-Polymer |
| 2G talk time | 8 h 480 min 0.3 days | - |
| 3G talk time | 8 h 480 min 0.3 days | - |
| Charger output power | 5 V / 1 A | 5 V / 2 A 9 V / 1.67 A |
| Features | Removable | Fast charging Non-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) | 0.477 W/kg | 0.422 W/kg |
| Body SAR (EU) | 0.917 W/kg | 1.544 W/kg |
| Head SAR (USA) | 0.553 W/kg | - |
| Body SAR (USA) | 0.742 W/kg | - |
| Head SAR (India) | - | 0.813 W/kg |
| Huawei Ascend Y550 | Samsung Galaxy A21s |