Redmi A1 vs Vivo Y21s
| Vormgeving | Touchscreen | Touchscreen |
| Afmetingen | 164.90 x 76.75 x 9.09 mm | 164.26 x 76.08 x 8.00 mm |
| Gewicht | 192.00 g | 182.00 g |
| Schermgrootte | 6.52" | 6.51" |
| Scherm | Kleurrijk / IPS TFT 16M kleuren 720 x 1600 px (6.52") 269 ppi | Kleurrijk / IPS TFT 16M kleuren 60 Hz 720 x 1600 px (6.51") 270 ppi |
| Bescherming scherm |   | |
| Extra scherm | | |
| Secundaire bescherming scherm | | |
| Standaard batterij | Li-Ion 5000 mAhBuy powerbank | Li-Ion 5000 mAhBuy powerbank |
| Snel opladen van de batterij | | Quick Charge |
| Draadloos opladen van de batterij | | |
| Intern geheugen | 32 GB | 128 GB |
| RAM-geheugen | 2 GB | 4 GB |
| Geheugen kaarten |  microSD, microSDHC, microSDXC tot 256 GBBuy memory card | microSD, microSDHC, microSDXC tot 1000 GBBuy memory card |
| Besturingssysteem | Android 12 Go | Android 11 |
| Interface | - | Funtouch 11.1 |
| Processor | MediaTek Helio A22 MT6761 | MediaTek Helio G80 MT6769T |
| CPU-klok | 2000 MHz | 2000 MHz |
| GPU | PowerVR GE8300 @660 MHz | ARM Mali-G52 MC2 |
| Touchscreen | | |
| Dual SIM | | |
| SIM-kaarten standaard |  | DualSIM(nanoSIM, nanoSIM) |
| Dual SIM-modus | nd | dual standby |
| Hybride Dual SIM | nd | |
| Introductiedatum | III. kwartaal 2022 | III. kwartaal 2021 |
| Andere namen van deze telefoon | Xiaomi Redmi A1; 220733SG | Y21s 2021 |
| GSM standaard | 850 900 1800 1900 | 850 900 1800 1900 |
| UMTS standaard (3G) | 850 900 2100 | 850 900 2100 |
| LTE-standaard | FDD LTE: 2100, 1800, 900, 850 TDD LTE: 2500, 2300 | FDD LTE: 2100, 1800, 900, 850 TDD LTE: 2300 |
| 5G-standaard | | |
| CDMA standaard | | |
| TD-SCDMA-standaard | | |
| UMA standaard | | |
CAMERA'S - TERUG
| Eerste camera | | |
| Cameratype | Standaard lens | Standaard lens |
| Matrix | 8 Mpx | 50 Mpx |
| Optische zoom | | |
| Flitser | LED | LED |
| Dual-color LED-flitser | | |
| Videoresolutie | | 1920x1080 px |
| Videoformaten | | H.263, H.264, MPEG4 - 30 fps |
| Extra | AF | AF, f/1.8 |
| Tweede camera | | |
| Cameratype | | Diepte van het veld |
| Matrix | | 2 Mpx |
| Optische zoom | | |
| Flitser | LED | LED |
| Dual-color LED-flitser | | |
| Videoformaten | | H.263, H.264, MPEG4 - 30 fps |
| Extra | FF | FF, f/2.4 |
| Derde camera | | |
| Cameratype | nd | Macro lens |
| Matrix | nd | 2 Mpx |
| Optische zoom | nd | |
| Flitser | nd | LED |
| Dual-color LED-flitser | nd | |
| Videoformaten | nd | H.263, H.264, MPEG4 - 30 fps |
| Extra | nd | FF, f/2.4 |
CAMERA'S - VOORKANT
| Eerste camera | | |
| Cameratype | Staande lens | Staande lens |
| Matrix | 5 Mpx | 8 Mpx |
| Optische zoom | | |
| Flitser | | |
| Dual-color LED-flitser | | |
| Videoformaten | | H.263, H.264, MPEG4 - 30 fps |
| Extra | FF | FF, f/2.0 |
SENSORS
| Accelerometer | | |
| Nabijheid | | |
| Licht sensor | | |
| Magnetometer | | |
| Gyroscoop | | |
| Barometer | | |
| Altimeter | | |
| Gravity sensor | | |
| Hall-effect sensor | | |
| Iris scanner | | |
| Vingerafdrukscanner | | |
| Thermometer | | |
| Hygrometer | | |
Gegevens transmissie
| xHTML | | |
| WAP | v2.0 | v2.0 |
| HSCSD | | |
| HSDPA | 42.20 Mbit/s | 42.20 Mbit/s |
| HSUPA | 5.76 Mbit/s | 5.76 Mbit/s |
| HSPA | | |
| HSPA+ | | |
| LTE DL | - | - |
| LTE UP | 51.00 Mbit/s | - |
| WIMAX+ | | |
| GPRS | | |
| EDGE | | |
| Bluetooth | v5.0 | v5.0 |
| Perfil A2DP | | |
| HDMI | | |
| WiFi | v802.11 b/g/n | v802.11 a/b/g/n/ac |
| WiFi frequenties | 2,4 GHz | 2,4 GHz; 5 GHz |
| WiFi Direct | | |
| WiFi Display | | |
| DLNA | | |
| Miracast | | |
| WiFi-hotspot | | |
| IrDA | | |
| USB | v2.0 | v2.0 Type-C |
| GPS | | |
| A-GPS | | |
| GLONASS | | |
| Beidou | | |
| Galileo | | |
| QZSS | | |
| NFC | | |
COMMUNICATIE EN BERICHTEN
| Call waiting | | |
| Video conferentie verbinding | | |
| Redirect | | |
| Push To Talk | | |
| Instant Messenger | | |
| SMS | | |
| EMS | | |
| MMS | | |
| Predictive text | T9 | T9 |
| Swype | | |
| E-mailclient | POP3, IMAP4, SMTP | POP3, IMAP4, SMTP |
| QWERTY toetsenbord | | |
| RSS reader | | |
Multimedia
| Radio | | |
| MP3 bediening | | |
| Stereo speakers | | |
| Audio Jack | 3.5 mm | 3.5 mm |
| HD Voice | | |
| Geluidsformaten | AAC, AAC+, AMR, MID, WAV, eAAC+ | AAC, AAC+, AMR, APE, FLAC, MID, OGG, WAV, eAAC+ |
| Ringtone polyfoon | | |
| Video beltonen | | |
| Beltoon componist | | |
| Spelletjes | | |
| Java | ART | ART |
| Videoverbinding | | |
| DVB-H televisie | | |
| TV aansluiting | | |
PIM EN EXTRA FUNCTIES
| Klok | | |
| Stopwatch | | |
| Alarm | | |
| Calculator | | |
| Valuta Converter | | |
| Organizer | | |
| Agenda | | |
| Vliegtuigstand | | |
| SyncML | | |
| Data en fax | | |
| Schermbeveiliging | | |
| Thema's | | |
| Verwisselbare cover | | |
| Voice picking | | |
| Speaker | | |
| Memorecorder | | |
| Trilalarm | | |