Redmi A3 vs Ulefone Note 21
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Redmi A3
See offers on Amazon.comUlefone Note 21
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Specifications comparison
General specifications
 User opinions: 0 |
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| Other names | Xiaomi Redmi A3, 23129RN51X, MZB0H0KIN, MZB0H0LIN, MZB0H0MIN | - |
| Predecessor | Redmi A2 | - |
| Announced |
1Q 2024 (2 years 9 months ago) |
4Q 2024 (2 years ago) |
| Type | Touch | Touch |
| Dimensions | 168.30 x 76.30 x 8.32 mm | 163.20 x 75.16 x 9.20 mm |
| Weight |
193.00 g
Buy case |
196.10 g
Buy case |
| Colour |
Available in 3 variants:
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Available in 2 variants:
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| Display |
Color / IPS TFT 16,7 millions colors, 90 Hz, Touch sampling rate 180 Hz 720 x 1650 px (6.71") 268 ppi max. luminance 500 nits [cd/m²] ∼82.9% screen-to-body ratio |
Color / IPS TFT 16,7 millions colors, 90 Hz 720 x 1612 px (6.56") 269 ppi ∼84.3% screen-to-body ratio |
| Display protection |
Corning Gorilla Glass 3
Buy screen protector |
Buy screen protector |
| Talk time (max.) |
| 4G: 1140 min. (19.0 h) |
| Stand-by (max.) |
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| Standard battery |
Li-Po 5000 mAh
Buy powerbank |
Li-Po 5000 mAh
Buy powerbank |
| Quick battery charging |
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| Charger included in the package |
Charger power 10 W
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| Wireless battery charging |
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| Internal memory |
Available in 2 variants:
Buy memory card |
128 GB
Buy memory card |
| End-user memory |
Available in 2 variants:
| No data |
| RAM memory |
Available in 3 variants:
| 4 GB |
| Memory cards |
microSD, microSDHC, microSDXC (up to 1 TB)
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microSD, microSDHC, microSDXC (up to 1 TB)
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| Operating system | Android 14 | Android 14 |
| Processor |
MediaTek Helio G36 MT6765X
Processor clock: 2.20 GHz Number of cores: 8 GPU: IMG PowerVR GE8320 @680 MHz |
Unisoc Tiger T606 UMS9230 T7200
Processor clock: 1.60 GHz Number of cores: 8 GPU: Mali-G57 MP1 @650 MHz |
| Standards |
GSM, UMTS, LTE
read more |
GSM, LTE
read more |
| Touchscreen |
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| SAR (10g) | 0,839 W/kg | - |
| DualSIM |
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| SIM card(s) | nanoSIM, nanoSIM | nanoSIM, nanoSIM |
| DualSIM mode | dual standby | dual standby |
| Hybrid DualSIM |
| nanoSIM, microSD |
Cameras - back
| First camera | | |
| Photo sensor model | - | Samsung S5K3L6 |
| Camera type | Standard | - |
| Photo matrix | 8 Mpx | 13 Mpx |
| Sensor size | - | 1/3 |
| Pixel size | - | 1,12 µm |
| Resolution | - | 4208x3120 px |
| Digital zoom | | |
| Number of lenses | - | 5 |
| Field of view | - | 81 ° |
| Flash | LED | LED |
| Video resolution | 1920x1080 | 1920x1080 |
| Video formats | H.264, MPEG4 - 30 fps | H.264, H.265, MPEG4 - 30 fps |
| Additional | AF, f/2.0 | AF, f/2.2 |
| Second camera | | |
| Camera type | - | Depth of field |
| Digital zoom | | |
| Flash | LED | LED |
| Additional | FF | FF |
Cameras - front
| First camera | | |
| Camera type | Portrait | Portrait |
| Photo matrix | 5 Mpx | 8 Mpx |
| Digital zoom | | |
| Flash | | |
| Video resolution | - | 1920x1080 |
| Additional | FF, f/2.2 | FF |
Sensors
| Accelerometer |
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| Proximity |
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| Light |
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| Magnetometer |
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| Gyroscope |
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| Barometer |
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| Altimeter |
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| Gravity |
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| Hall-effect |
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| Iris scanner |
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| Fingerprint scanner | Side | Side |
| Thermometer |
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| Hygrometer |
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| read more | ||
Data transfer
| HSDPA | 42.20 Mbit/s | 42.20 Mbit/s |
| HSUPA | 5.76 Mbit/s | 5.76 Mbit/s |
| HSPA |
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| HSPA+ |
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| LTE DL | 301.50 Mbit/s | 301.50 Mbit/s |
| LTE UP | 150.80 Mbit/s | 150.80 Mbit/s |
| GPRS |
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| EDGE |
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| Bluetooth |
v5.3
Buy headphones |
v5.0
Buy headphones |
| A2DP Profile |
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| WiFi |
v802.11 a/b/g/n/ac
read more |
v802.11 a/b/g/n/ac
read more |
| DLNA |
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| Infrared |
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| USB |
v2.0 OTG Type-C Buy adapter |
v2.0 OTG Type-C Buy adapter |
| GPS module |
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| A-GPS |
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| GLONASS support |
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| Beidou |
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| Galileo |
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Communication and messaging
| Call waiting |
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| Conferency |
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| Call forwarding |
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| Push To Talk |
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| Instant Messenger |
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| SMS |
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| SMS Memory |
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| MMS |
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| Dictionary |
T9
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T9
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| e-mail client |
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| e-mail protocols | POP3, IMAP4, SMTP | POP3, IMAP4, SMTP |
| RSS Reader |
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| read more | ||
Multimedia
| Radio |
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| MP3 |
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| Stereo speakers |
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| Audio Jack |
3.5 mm
Buy headphones |
3.5 mm
Buy headphones |
| HD Voice |
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| Sound formats | AAC, AAC+, AMR, MID, WAV, eAAC+ | AAC, AAC+, AMR, MID, WAV, eAAC+ |
| Java |
ART
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ART
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| Videophone |
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| read more | ||
PIM and additional functions
| Watch |
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| Stopwatch |
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| Alarm |
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| Calculator |
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| Organizer |
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| Calendar |
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| Flight mode |
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| Data and fax |
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| Voice dial |
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| Speakerphone |
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| Recorder |
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| Vibrations |
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| read more | ||