Xiaomi Mi A3 (128GB) vs Xiaomi 12 (256GB/8GB)
Side by side comparison between Xiaomi Mi A3 vs Xiaomi 12 phones, differences, pros, cons and full specifications. What's the better?
,
6.088"
AMOLED
AMOLED
720x1560
48
MP
MP
32mp
4GB
RAM
RAM
Octa-core
4030
mAh
mAh
(Non removable)
vs
6.28"
AMOLED
AMOLED
1080x2400
50
MP
MP
32mp
8GB
RAM
RAM
Octa-core
4500
mAh
mAh
(Non removable)
What's the better phone? Xiaomi 12 (256GB/8GB)
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!
7 Advantages 
26 Advantages | 20 Common items in both devices |
| Aluminum frame, glass front/back |
| Only digital zoom |
| PDAF: phase detection autofocus |
| HDR photo on both cameras / HDR photo/video on both cameras |
| (front) 32MP |
| (front) Full HD (1920x1080) |
| Capacitive |
| +13 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 highlight📱 Model features | ||
| Xiaomi Mi A3 (128GB) | Xiaomi 12 (256GB/8GB) | |
| Model | Xiaomi Mi A3 (128GB) | Xiaomi 12 (256GB/8GB) |
| Other model names | Xiaomi Mi A3 (Android One), M1906F9SH, M1906F9SI | Xiaomi 12 5G 2201123G (Global), 2201123C (China) |
| Country or region available |  (Global, International) | (Global, International) |
| Brand | Xiaomi | Xiaomi |
| Release date | 7/24/2019, Announced: 7/17/2019 | 12/31/2021, Announced: 12/28/2011 |
| Depth | 8.5 millimeters (0.33 inches) | 8.2 millimeters (0.32 inches) |
| Size (width x height) | 71.85 x 153.48 millimeters (2.83 x 6.04 in) | 69.9 x 152.7 millimeters (2.75 x 6.01 in) |
| Weight | 174 grams (6.09 ounces) | 180 grams (6.3 ounces) |
| Build, materials | Aluminum frame, glass front/back | Aluminum frame, glass front/back |
| Protection against water and others | Not supported | Not supported |
📲 Display | ||
| Xiaomi Mi A3 (128GB) | Xiaomi 12 (256GB/8GB) | |
| Display type | Super AMOLED | AMOLED |
| Screen size | 6.088" inches | 6.28" inches |
| Screen-to-body ratio | ~82.5% (screen-to-body ratio) | ~89.2% (screen-to-body ratio) |
| Display resolution | 720x1560 pixels (19.5:9) | 1080x2400 pixels (20:9) |
| Touchscreen | Capacitive Multitouch | Capacitive Multitouch 10-points |
| Pixel density (dot pitch) | 282 PPI | 419 PPI |
| Colors | 16 million | 1 billion |
| Scratch-resistant glass | Gorilla Glass 5 | Gorilla Glass Victus |
| Refresh rate | 60Hz | 120Hz |
| Display features | Not supported | 1100nits[peak] Dolby Vision/HDR10+ |
🤖 Operating System | ||
| Xiaomi Mi A3 (128GB) | Xiaomi 12 (256GB/8GB) | |
| System version | Android 9.0 Pie | Android 12 |
| Firmware update | Android 11 | feature not registered |
| User Interface | Android One | MIUI 13 |
⚙️ Processor | ||
| Xiaomi Mi A3 (128GB) | Xiaomi 12 (256GB/8GB) | |
| Chipset | 64bit: Qualcomm Snapdragon 665 (SM6125) (11nm) | 64bit: Qualcomm Snapdragon 8 Gen 1 (SM8450) (4nm) |
| CPU | Octa-core, 2 processors: 4x 2GHz Kryo 260 Gold (Quad-core) 4x 1.8GHz Kryo 260 Silver (Quad-core) | Octa-core, 3 processors: 1x 3GHz ARM Cortex-X2 (Single-core) 3x 2.5GHz ARM Cortex-A710 (Triple-core) 4x 1.79GHz ARM Cortex-A510 (Quad-core) |
| GPU graphical controller | Qualcomm Adreno 610 | Qualcomm Adreno 730 (818MHz) |
| Performance (benchmark) | feature not registered | AnTuTu: 985115 (v9) Geekbench: 3652 (v5.1) GFXBench: 75fps (ES 3.1 onscreen) |
💽 Memory and storage | ||
| Xiaomi Mi A3 (128GB) | Xiaomi 12 (256GB/8GB) | |
| RAM memory | 4GB LPDDR4X | 8GB LPDDR5 |
| Internal storage | 128GB (109GB available) UFS 2.1 | 256GB (218GB available) UFS 3.1 |
| External storage | Until 512GB microSD, microSDXC (hybrid slot/shares the same SIM-2 slot) | Not supported |
📶 Mobile networks | ||
| Xiaomi Mi A3 (128GB) | Xiaomi 12 (256GB/8GB) | |
| Dual-SIM | Dual-SIM Standby - Call active on one sim card (hybrid slot/shares the same microSD slot) | Dual-SIM Standby - Call active on one sim card |
| SIM card | 2 slots (Dual-SIM) nano-SIM (4FF) | 2 slots (Dual-SIM) nano-SIM (4FF) |
| Maximum Download / Upload | 450/50 Mbps | 2000/1024 Mbps |
| Network technology | 2G, 3G, 4G | 2G, 3G, 4G, 5G |
| 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 | CDMA 800, GSM 850/900/1800/1900 |
| Primary 3G network | UMTS 850/900/1700/1900/2100 | CDMA2000 1xEV-DO UMTS 800/850/900/1700/1900/2100 |
| Primary 4G network | LTE Cat9 (1, 2, 3, 4, 5, 7, 8, 20, 28) TD-LTE (38, 40) VoLTE | LTE Cat20 VoLTE Global version: LTE (1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 18, 19, 20, 25, 26, 28, 32, 66) TD-LTE (38, 39, 40, 41, 42, 48) China version: LTE (1, 2, 3, 4, 5, 7, 8, 12, 17, 18, 19, 26) TD-LTE (34, 38, 39, 40, 41, 42) |
| Primary 5G network | Not supported | Global version: SA/NSA (1, 3, 5, 7, 8, 20, 28, 38, 40, 41, 66, 77, 78, 79) China version: SA/NSA (1, 3, 5, 8, 28, 41, 77, 78, 79) |
| Primary data network | GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A | GPRS, EDGE, CDMA2000 EV-DO Rev 0, CDMA2000 EV-DO Rev A, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A, SA/NSA |
| Secondary 2G network | GSM 850/900/1800/1900 | GSM 850/900/1800/1900 |
| Secondary 3G network | UMTS 850/900/1700/1900/2100 | UMTS 800/850/900/1700/1900/2100 |
| Secondary 4G network | Not supported | LTE Cat20 VoLTE Global version: LTE (1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 18, 19, 20, 25, 26, 28, 32, 66) TD-LTE (38, 39, 40, 41, 42, 48) China version: LTE (1, 2, 3, 4, 5, 7, 8, 12, 17, 18, 19, 26) TD-LTE (34, 38, 39, 40, 41, 42) |
| Secondary data network | GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+ | GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A, SA/NSA |
📷 Camera | ||
| Xiaomi Mi A3 (128GB) | Xiaomi 12 (256GB/8GB) | |
| Back camera (main camera) | (triple camera) 48 megapixels 8MP ultrawide f/2.21/4.0"1.12µm 2MP depth f/2.4 | (triple camera) 50 megapixels 13MP ultrawide f/2.412mm123°1/3.06"1.12µm 5MP telephoto macro f/2.450mmAF |
| Main camera resolution | 8000x6000 pixels | 8160x6120 pixels |
| Video recording (primary) | 4K UHD (3840x2160) 30 fps | 8K UHD (7680x4320) 24 fps |
| Flash | LED flash | Dual-LED flash |
| Focal aperture | f/1.8 (aperture) | f/1.9 (aperture) |
| Focal length | feature not registered | 26mm lens |
| Sensor size | 1/2" inches | 1/1.56" inches |
| Pixel size | 0.8µm pixel | 1µm pixel |
| Autofocus | PDAF: phase detection autofocus | PDAF: phase detection autofocus |
| Touch focus | Supported | Supported |
| Image stabilization | EIS: Digital stabilization | OIS: Optical stabilization |
| Zoom | Only digital zoom | Only digital zoom |
| Face/smile detection | Face detection, Smile detection | Face detection, Smile detection |
| BSI sensor | Not supported | Supported |
| HDR | HDR photo on both cameras | HDR photo/video on both cameras |
| Camera extras | 1080p@120fps | 4K@60fps 1080p@960fps Sony IMX707 Leica optics |
📸 Front camera | ||
| Xiaomi Mi A3 (128GB) | Xiaomi 12 (256GB/8GB) | |
| Front camera (secondary) | 32 megapixels | 32 megapixels |
| Front camera resolution | 6528x4896 pixels | 6528x4896 pixels |
| Video recording (secondary) | Full HD (1920x1080) | Full HD (1920x1080) |
| Front flash | Not supported | Not supported |
| Focal aperture | f/2.0 (aperture) | f/2.5 (aperture) |
| Focal length | 26mm lens | 26mm lens |
| Sensor size | 1/2.8" inches | feature not registered |
| Pixel size | 0.8µm pixel | 0.7µm pixel |
🔉 Sound and multimedia | ||
| Xiaomi Mi A3 (128GB) | Xiaomi 12 (256GB/8GB) | |
| Loudspeaker | Mono sound (not stereo) | Stereo sound with dual speakers 24-bit/192kHz Dolby Atmos Tuned by Harman Kardon |
| Active noise cancellation | 2 microphones or more | 2 microphones or more |
| Radio | FM | Not supported |
| TV | Not supported | Not supported |
| Video formats | MP4, H.265, H.264, H.263, XviD, MKV | MP4, H.265, H.264, H.263, XviD, MKV |
| Audio formats | MP3, WAV, WMA, eAAC+, FLAC | MP3, WAV, WMA, eAAC+, FLAC |
🔌 Connectivity | ||
| Xiaomi Mi A3 (128GB) | Xiaomi 12 (256GB/8GB) | |
| USB | USB 2.0 Type-C, USB OTG On-The-Go | USB 2.0 Type-C, USB OTG On-The-Go |
| Audio output | 3.5mm jack | Type-C reversible connector |
| TV output | Not supported | USB Type-C (reversible) |
| Bluetooth | 5.0 + A2DP/LE | 5.2 + A2DP/LE |
| WiFi | 802.11 a/b/g/n/ac [wifi5] (2.4GHz, 5GHz) + MIMO WiFi Direct, hotspot | 802.11 a/b/g/n/ac/ax [wifi6] (2.4GHz, 5GHz) + MIMO WiFi Direct, hotspot |
| DLNA | Not supported | Not supported |
| GPS | A-GPS, GeoTagging, GLONASS, BeiDou | A-GPS, GeoTagging, GLONASS, GALILEO, BeiDou, QZSS, NavIC |
| NFC | Not supported | Supported |
| Infrared port | Supported | Supported |
🧭 Sensors | ||
| Xiaomi Mi A3 (128GB) | Xiaomi 12 (256GB/8GB) | |
| Sensors | Accelerometer Ambient light sensor Compass Face unlock Fingerprint sensor (under display) Gyroscope Proximity sensor | Accelerometer Ambient light sensor Compass Face unlock Fingerprint sensor (under display) Gyroscope Virtual proximity sensor |
| Vibrating alert | Supported | Supported |
🔋 Battery | ||
| Xiaomi Mi A3 (128GB) | Xiaomi 12 (256GB/8GB) | |
| Battery type | LiPo: li-ion polymer (Non removable) | LiPo: li-ion polymer (Non removable) |
| Battery capacity | 4030 mAh | 4500 mAh |
| Charger, watts | 18W (9V/2A) Wired fast charging Quick Charge 3 | 67W Wired fast charging Reverse charging by cable Quick Charge 4 USB Power Delivery 3.0 |
| Inductive / wireless charging | Not supported | 50W Qi wireless charging 10W Reverse wireless charging |
| Talk time autonomy | feature not registered | feature not registered |
| Standby | feature not registered | feature not registered |
➕ Other features | ||
| Xiaomi Mi A3 (128GB) | Xiaomi 12 (256GB/8GB) | |
| Call control | Voice dialing, Voice recorder | Voice dialing, Voice recorder, Voice commands |
| Messaging | SMS (T9), 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, HTML5 | HTML, XHTML, HTML5 |
| Antenna | Internal antenna | Internal antenna |
| Qwerty physical keyboard | Not supported | Not supported |
| Miscellaneous | • Colors: Gray, White, Blue | • Colors: Gray, Blue, Purple, Green • LiquidCool |
☢️ Radiation rate | ||
| Xiaomi Mi A3 (128GB) | Xiaomi 12 (256GB/8GB) | |
| SAR 1.6W/kg (USA, Mexico, etc.) | feature not registered | 1.09W/kg (head), 0.91W/kg (body) |
| SAR 2W/kg (Europe, UK, etc.) | feature not registered | 0.6W/kg (head), 1W/kg (body) |