| Physical features | Samsung Galaxy A21 (SM-A215U1) | Nokia 2220 slide |
| Model | Galaxy A21 (SM-A215U1) | 2220 slide |
| Other model names | Galaxy A21 SM-A215UZKAXAA (USA Unlocked) | Nokia 2220 slide, Nokia 2220 slide US |
| Country or region available | 
USA | feature not registered |
| Brand | Samsung | Nokia |
| Release date | June, 2020 | February, 2010 |
| Depth | 8.1 millimeters (0.32 inches) | 15.85 millimeters (0.62 inches) |
| Size (width x height) | 76.7 x 167.8 millimeters (3.02 x 6.61 in) | 47 x 94.14 millimeters (1.85 x 3.71 in) |
| Weight | 193 grams (6.76 ounces) | 94 grams (3.29 ounces) |
| Qwerty physical keyboard | Not supported | Not supported |
| Antenna | Internal antenna | Internal antenna |
| Build, materials | Plastic body, glass front | feature not registered |
| Protection against water and others | Not supported | Not supported |
| System (OS) | Samsung Galaxy A21 (SM-A215U1) | Nokia 2220 slide |
| Operating system | Android 10 | Nokia Series OS S40 5th edition Feature Pack 1 |
| Firmware update | feature not registered | feature not registered |
| Hardware | Samsung Galaxy A21 (SM-A215U1) | Nokia 2220 slide |
| Chipset | 64bit - MediaTek MT6765 Helio P35 (12nm) | feature not registered |
| CPU processor | Octa-Core, 2 processors:
2.3Ghz Quad-Core ARM Cortex-A53
1.8Ghz Quad-Core ARM Cortex-A53 | Single-Core |
| GPU graphical controller | PowerVR GE8320 680Mhz | feature not registered |
| RAM memory | 3GB LPDDR3 | 4MB SDRAM |
| Internal storage | 32GB (20GB available)
eMMC 5.1 | 32MB (10MB available) |
| External storage | Until 512GB microSD, microSDXC
(dedicated slot) | Not supported |
| Display | Samsung Galaxy A21 (SM-A215U1) | Nokia 2220 slide |
| Display type | TFT PLS | TFT LCD |
| Screen size | 6.5" inches | 1.8" inches |
| Screen-to-body ratio | ~79.3% (screen-to-body ratio) | ~23% (screen-to-body ratio) |
| Display resolution | 720x1600 pixels (20:9) | 128x160 pixels |
| Touchscreen | Capacitive Multitouch | Not supported |
| Pixel density (dot pitch) | 270 PPI | 114 PPI |
| Colors | 16 million | 65 thousand |
| Scratch-resistant glass | Not supported | Not supported |
| Display features | 60Hz | feature not registered |
| Mobile networks | Samsung Galaxy A21 (SM-A215U1) | Nokia 2220 slide |
| Dual-SIM | Not supported | Not supported |
| SIM card | 1 slot (Single-SIM)
nano-SIM (4FF) | 1 slot (Single-SIM)
Standard mini-SIM (2FF) |
| Maximum download/upload | 150/50 Mbps | 0.236 Mbps |
| Network technology | 2G, 3G, 4G | feature not registered |
| Frequency, bands | Expand band detailsCollapse details |
| GSM Mhz band | Quad-Band 850/900/1800/1900 | Not supported |
| Primary 2G network | CDMA 800/1900, GSM 850/900/1800/1900 | Not supported |
| Primary 3G network | CDMA2000 1xEV-DO
UMTS 850/900/1700/1900/2100 | Not supported |
| Primary 4G network | LTE Cat4 (1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 20, 25, 26, 28, 66, 71)
TD-LTE (38, 39, 40, 41)
VoLTE | Not supported |
| Primary 5G network | Not supported | Not supported |
| Primary data network | GPRS, EDGE, CDMA2000 EV-DO Rev 0, CDMA2000 EV-DO Rev A, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE | GPRS, EDGE |
| 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 |
| Calling | Samsung Galaxy A21 (SM-A215U1) | Nokia 2220 slide |
| Messaging | SMS (T9), MMS, E-mail, Push mail | SMS, MMS, E-mail |
| Speakerphone | Supported | Supported |
| Video calling | Supported | Not supported |
| Call control | Voice dialing, Voice recorder, Voice commands | Voice recorder |
| Camera | Samsung Galaxy A21 (SM-A215U1) | Nokia 2220 slide |
| Back camera (main camera) | (quad camera)
16 megapixels
8MP ultrawidef/2.21/4.0"1.12µm
2MP macrof/2.4
2MP depthf/2.4 | 0.3 megapixels |
| Main camera resolution | 4608x3456 pixels | 640x480 pixels |
| Video recording (primary) | Full HD (1920x1080) 30 fps | QCIF (128x96) 10 fps |
| Flash | LED flash | Not supported |
| Focal aperture | f/1.8 (aperture) | feature not registered |
| Focal length | feature not registered | feature not registered |
| Sensor size | 1/3.06" inches | feature not registered |
| Pixel size | 1µm pixel | feature not registered |
| Autofocus | PDAF: phase detection autofocus | Not supported |
| Touch focus | Supported | feature not registered |
| Image stabilization | EIS: Digital stabilization | feature not registered |
| Zoom | Only digital zoom | Only digital zoom |
| Face/smile detection | Face detection, Smile detection | feature not registered |
| BSI sensor | Not supported | feature not registered |
| HDR | HDR photo on both cameras | feature not registered |
| 2ª camera | Samsung Galaxy A21 (SM-A215U1) | Nokia 2220 slide |
| Front camera (secondary) | 13 megapixels | Not supported |
| Front camera resolution | 4128x3096 pixels | Not supported |
| Video recording (secondary) | Full HD (1920x1080) | Not supported |
| Front flash | Not supported | Not supported |
| Focal aperture | f/2.0 (aperture) | feature not registered |
| Focal length | feature not registered | feature not registered |
| Sensor size | feature not registered | feature not registered |
| Pixel size | 1.12µm pixel | feature not registered |
| Multimedia | Samsung Galaxy A21 (SM-A215U1) | Nokia 2220 slide |
| Radio | FM | FM |
| TV | Not supported | Not supported |
| Video formats | MP4, H.265, H.264, H.263, XviD, MKV | MP4, H.263 |
| Audio formats | MP3, WAV, WMA, eAAC+, FLAC | MP3, WAV, AAC, MIDI |
| Connectivity | Samsung Galaxy A21 (SM-A215U1) | Nokia 2220 slide |
| USB | USB 2.0 Type-C reversible connector | Not supported |
| TV output | Not supported | Not supported |
| Audio output | 3.5mm jack | 3.5mm jack |
| Bluetooth | 5.0 + A2DP/LE | Not supported |
| WiFi | 802.11 a/b/g/n/ac (2.4Ghz, 5Ghz) + MIMO | Not supported |
| DLNA | Not supported | feature not registered |
| NFC | Supported | Not supported |
| GPS | A-GPS, GeoTagging, GLONASS | Not supported |
| Infrared port | Not supported | feature not registered |
| Other functions | Samsung Galaxy A21 (SM-A215U1) | Nokia 2220 slide |
| Active noise cancellation | Supported | feature not registered |
| Vibrating alert | Supported | Supported |
| Ringtones | Polyphonic and customized | Polyphonic and customized |
| Web browser | HTML, XHTML, HTML5 | feature not registered |
| Sensors | Accelerometer
Proximity sensor
Compass
Ambient Light sensor
Gyroscope
Face unlock
Fingerprint sensor (rear-mounted)
| Not supported |
| Other features | - Colors: Black
- One UI 2.0
- WiFi direct, hotspot | - Colors: Pink, Graphite, Turquoise, Silver, Purple, Blue
- Series 40 Theme v3.0 Light / Lite
- Nokia XpressAudio
- Java framework |
| Power supply | Samsung Galaxy A21 (SM-A215U1) | Nokia 2220 slide |
| Battery | LiPo: Li-Ion polymer (Non removable) | Li-Ion: Lithium-Ion (Removable)
BL-4C |
| Battery capacity | 4000 mAh | 860 mAh |
| Charger, watts | 15W Fast battery charging | Standard charging |
| Talk time autonomy | feature not registered | 318 minutes | 5.3 hours | 0.2 day |
| Standby | feature not registered | 28800 minutes | 480 hours | 20 days |
| Radiation rate | Samsung Galaxy A21 (SM-A215U1) | Nokia 2220 slide |
| SAR 1.6W/kg (USA, Mexico, etc.) | 0.6W/kg (head) | 1.27W/kg (body) | feature not registered |
| SAR 2W/kg (Europe, UK, etc.) | feature not registered | feature not registered |