Samsung Galaxy S2 (SGH-i777 16GB) vs Samsung Galaxy A21s (SM-A217M)
Side by side comparison between Samsung Galaxy S2 (SGH-i777) vs Samsung Galaxy A21s phones, differences, pros, cons and full specifications. What's the better?
,
4.3"
AMOLED
AMOLED
480x800
8
MP
MP
2mp
1GB
RAM
RAM
Dual-core
1650
mAh
mAh
(Removable)
vs
6.5"
PLS
PLS
720x1600
48
MP
MP
13mp
4GB
RAM
RAM
Octa-core
5000
mAh
mAh
(Non removable)
What's the better phone? Samsung Galaxy A21s (SM-A217M)
The phonemore's choice is much more technical than personal. Therefore, you shouldn't only consider this. Our goal is to help you, but what's important to us may not be important to you. You decide which one is the best! Comment!
17 Common items in both devices |
8.9 millimeters (0.35 inches) |
Plastic body, glass front |
16 million |
LED flash |
Only digital zoom |
Autofocus / PDAF: phase detection autofocus |
EIS: Digital stabilization |
+10 specs and more in the table below |
Check the comparison table below for more items that are not evaluated in comparison score above.
Highlight differences Clear highlight๐ฑ Model features | ||
Galaxy S2 (SGH-i777 16GB) | Galaxy A21s (SM-A217M) | |
Model | Galaxy S2 (SGH-i777 16GB) | Galaxy A21s (SM-A217M) |
Other model names | AT&T Samsung Galaxy S II i777, Samsung Attain | Galaxy A21s SM-A217M Single-Sim (64GB + 4GB RAM) |
Country or region available | USA | (Latin America), Mexico |
Brand | Samsung | Samsung |
Release date | 10/2/2011 | 6/2/2020, Announced: 5/15/2020 |
Depth | 8.9 millimeters (0.35 inches) | 8.9 millimeters (0.35 inches) |
Size (width x height) | 66 x 126 millimeters (2.6 x 4.96 in) | 75.3 x 163.7 millimeters (2.96 x 6.44 in) |
Weight | 122 grams (4.27 ounces) | 192 grams (6.72 ounces) |
Build, materials | Plastic body, glass front | Plastic body, glass front |
Protection against water and others | Not supported | Not supported |
๐ฒ Display | ||
Galaxy S2 (SGH-i777 16GB) | Galaxy A21s (SM-A217M) | |
Display type | Super AMOLED Plus | TFT PLS |
Screen size | 4.3" inches | 6.5" inches |
Screen-to-body ratio | ~63.3% (screen-to-body ratio) | ~82.8% (screen-to-body ratio) |
Display resolution | 480x800 pixels | 720x1600 pixels (20:9) |
Touchscreen | Capacitive Multitouch | Capacitive Multitouch |
Pixel density (dot pitch) | 217 PPI | 270 PPI |
Colors | 16 million | 16 million |
Scratch-resistant glass | Gorilla Glass | Not supported |
Refresh rate | feature not registered | 60Hz |
Display features | feature not registered | Not supported |
๐ค Operating System | ||
Galaxy S2 (SGH-i777 16GB) | Galaxy A21s (SM-A217M) | |
System version | Android 2.3.4 Gingerbread | Android 10 |
Firmware update | Android 2.3.6 Gingerbread | Android 12 |
User Interface | feature not registered | One UI 2.0 / 3.1 / 4.1 |
โ๏ธ Processor | ||
Galaxy S2 (SGH-i777 16GB) | Galaxy A21s (SM-A217M) | |
Chipset | 32bit: Samsung Exynos 4 Dual 4210 (45nm) | 64bit: Samsung Exynos 850 (8nm) |
CPU | Dual-core, 1 processor: 2x 1.2GHz ARM Cortex-A9 (Dual-core) | Octa-core, 1 processor: 8x 2GHz ARM Cortex-A55 (Octa-core) |
GPU graphical controller | ARM Mali-400 MP4 | ARM Mali-G52 MP1 |
Performance (benchmark) | feature not registered | AnTuTu: 124232 (v8) |
๐ฝ Memory and storage | ||
Galaxy S2 (SGH-i777 16GB) | Galaxy A21s (SM-A217M) | |
RAM memory | 1GB LPDDR2 | 4GB LPDDR4X |
Internal storage | 16GB (13GB available) | 64GB (48GB available) eMMC 5.1 |
External storage | Until 32GB microSD, microSDHC (dedicated slot) | Until 512GB microSD, microSDXC (dedicated slot) |
๐ถ Mobile networks | ||
Galaxy S2 (SGH-i777 16GB) | Galaxy A21s (SM-A217M) | |
Dual-SIM | Not supported | Not supported |
SIM card | 1 slot (Single-SIM) Standard mini-SIM (2FF) | 1 slot (Single-SIM) nano-SIM (4FF) |
Maximum Download / Upload | 21/5.76 Mbps | 300/150 Mbps |
Network technology | 2G, 3G | 2G, 3G, 4G |
Frequency, bands | Expand band details Collapse details | |
GSM MHz band | Quad-Band 850/900/1800/1900 | Quad-Band 850/900/1800/1900 |
Primary 2G network | GSM 850/900/1800/1900 | GSM 850/900/1800/1900 |
Primary 3G network | UMTS 850/1900/2100 | UMTS 850/900/1700/1900/2100 |
Primary 4G network | Not supported | LTE Cat7/13 (1, 2, 3, 4, 5, 7, 8, 12, 17, 20, 28, 66) TD-LTE (38, 40, 41) |
Primary 5G network | Not supported | Not supported |
Primary data network | GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+ | GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A |
Secondary 2G network | Not supported | Not supported |
Secondary 3G network | Not supported | Not supported |
Secondary 4G network | Not supported | Not supported |
Secondary data network | Not supported | Not supported |
๐ท Camera | ||
Galaxy S2 (SGH-i777 16GB) | Galaxy A21s (SM-A217M) | |
Back camera (main camera) | 8 megapixels | (quad camera) 48 megapixels 8MP ultrawide f/2.21/4"1.12ยตm123ยฐ 2MP macro f/2.4 2MP depth f/2.4 |
Main camera resolution | 3264x2448 pixels | 8000x6000 pixels |
Video recording (primary) | Full HD (1920x1080) 30 fps | Full HD (1920x1080) 30 fps |
Flash | LED flash | LED flash |
Focal aperture | feature not registered | f/2.0 (aperture) |
Focal length | feature not registered | 26mm lens |
Sensor size | feature not registered | 1/2" inches |
Pixel size | feature not registered | 0.8ยตm pixel |
Autofocus | Autofocus | PDAF: phase detection autofocus |
Touch focus | Supported | Supported |
Image stabilization | EIS: Digital stabilization | EIS: Digital stabilization |
Zoom | Only digital zoom | Only digital zoom |
Face/smile detection | Face detection | Face detection, Smile detection |
BSI sensor | Not supported | Not supported |
HDR | Not supported | HDR photo on both cameras |
Camera extras | feature not registered | feature not registered |
๐ธ Front camera | ||
Galaxy S2 (SGH-i777 16GB) | Galaxy A21s (SM-A217M) | |
Front camera (secondary) | 2 megapixels | 13 megapixels |
Front camera resolution | 1600x1200 pixels | 4128x3096 pixels |
Video recording (secondary) | Not supported | Full HD (1920x1080) |
Front flash | Not supported | Not supported |
Focal aperture | feature not registered | f/2.2 (aperture) |
Focal length | feature not registered | feature not registered |
Sensor size | feature not registered | 1/3.1" inches |
Pixel size | feature not registered | 1.12ยตm pixel |
๐ Sound and multimedia | ||
Galaxy S2 (SGH-i777 16GB) | Galaxy A21s (SM-A217M) | |
Loudspeaker | Supported | Mono sound (not stereo) |
Active noise cancellation | 2 microphones or more | 2 microphones or more |
Radio | Not supported | FM |
TV | Not supported | Not supported |
Video formats | MP4, H.264, H.263, XviD | MP4, H.265, H.264, H.263, XviD, MKV |
Audio formats | MP3, WAV, WMA, eAAC+, FLAC | MP3, WAV, WMA, eAAC+, FLAC |
๐ Connectivity | ||
Galaxy S2 (SGH-i777 16GB) | Galaxy A21s (SM-A217M) | |
USB | MicroUSB 2.0, USB OTG On-The-Go | USB 2.0 Type-C reversible connector |
Audio output | 3.5mm jack | 3.5mm jack |
TV output | Micro-B USB MHL | Not supported |
Bluetooth | 3.0 + A2DP | 5.0 + A2DP/LE |
WiFi | 802.11 a/b/g/n [wifi4] (2.4GHz, 5GHz) WiFi Direct, hotspot | 802.11 a/b/g/n/ac [wifi5] (2.4GHz, 5GHz) + MIMO WiFi Direct, hotspot |
DLNA | feature not registered | Not supported |
GPS | A-GPS, GeoTagging | A-GPS, GeoTagging, GLONASS, GALILEO, BeiDou |
NFC | Not supported | Not supported |
Infrared port | feature not registered | Not supported |
๐งญ Sensors | ||
Galaxy S2 (SGH-i777 16GB) | Galaxy A21s (SM-A217M) | |
Sensors | Accelerometer Ambient light sensor Compass Gyroscope Proximity sensor | Accelerometer Compass Face unlock Fingerprint sensor (rear-mounted) Gyroscope Proximity sensor Virtual ambient light sensor |
Vibrating alert | Supported | Supported |
๐ Battery | ||
Galaxy S2 (SGH-i777 16GB) | Galaxy A21s (SM-A217M) | |
Battery type | Li-Ion: lithium-ion (Removable) | LiPo: li-ion polymer (Non removable) |
Battery capacity | 1650 mAh | 5000 mAh |
Charger, watts | Wired charging | 15W (9V/1.67A) Wired fast charging |
Inductive / wireless charging | feature not registered | Not supported |
Talk time autonomy | 8 hours | feature not registered |
Standby | 400 hours (16.7 days) | feature not registered |
โ Other features | ||
Galaxy S2 (SGH-i777 16GB) | Galaxy A21s (SM-A217M) | |
Call control | Voice dialing, Voice recorder, Voice commands | Voice dialing, Voice recorder, Voice commands |
Messaging | SMS (Swype), MMS, E-mail, Push mail | SMS (T9), MMS, E-mail, Push mail |
Hands-free calling | Supported | Supported |
Video calling | Supported | Supported |
Ringtones | Polyphonic and customized | Polyphonic and customized |
Web browser | HTML, XHTML, Flash player | HTML, XHTML, HTML5 |
Antenna | Internal antenna | Internal antenna |
Qwerty physical keyboard | Not supported | Not supported |
Miscellaneous | โข Colors: Black โข Samsung TouchWiz 4.0 UI โข Java framework | โข Colors: Black, White, Blue, Red |
โข๏ธ Radiation rate | ||
Galaxy S2 (SGH-i777 16GB) | Galaxy A21s (SM-A217M) | |
SAR 1.6W/kg (USA, Mexico, etc.) | feature not registered | 0.54W/kg (head), 1.14W/kg (body) |
SAR 2W/kg (Europe, UK, etc.) | feature not registered | feature not registered |