Xiaomi Mi A1 vs Xiaomi Redmi Note 9 (128GB Global)
Side by side comparison between Xiaomi Mi A1 vs Xiaomi Redmi Note 9 phones, differences, pros, cons and full specifications. What's the better?
,
5.5"
IPS
IPS
1080x1920
12
MP
MP
5mp
4GB
RAM
RAM
Octa-core
3080
mAh
mAh
(Non removable)
vs
6.53"
IPS
IPS
1080x2340
48
MP
MP
13mp
4GB
RAM
RAM
Octa-core
5020
mAh
mAh
(Non removable)
What's the better phone? Xiaomi Redmi Note 9 (128GB Global)
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 
18 Advantages | 22 Common items in both devices |
| LTPS IPS LCD / TFT IPS LCD |
| 16 million |
| PDAF: phase detection autofocus |
| EIS: Digital stabilization |
| (front) Full HD (1920x1080) |
| 4G LTE-A |
| 300 Mbps |
| +15 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 A1 | Redmi Note 9 (128GB Global) | |
| Change model | ||
| Model | Xiaomi Mi A1 | Redmi Note 9 (128GB Global) |
| Other model names | Xiaomi A1 MDG2, Xiaomi Mi A1 Android One, Xiaomi Tiffany | Mi Redmi Note 9 M2003J15SG Global version (NFC) |
| Country or region available |       (Europe), Hong Kong, India, Indonesia, (Global, International), Vietnam | (Global, International) |
| Brand | Xiaomi | Xiaomi |
| Release date | 9/12/2017 | 5/12/2020, Announced: 4/30/2020 |
| Depth | 7.3 millimeters (0.29 inches) | 8.9 millimeters (0.35 inches) |
| Size (width x height) | 75.8 x 155.4 millimeters (2.98 x 6.12 in) | 77.2 x 162.3 millimeters (3.04 x 6.39 in) |
| Weight | 165 grams (5.78 ounces) | 199 grams (6.97 ounces) |
| Build, materials | feature not registered | Plastic body, glass front |
| Protection against water and others | Not supported | Water repellent nano-coating (don't immerse) |
📲 Display | ||
| Xiaomi Mi A1 | Redmi Note 9 (128GB Global) | |
| Display type | LTPS IPS LCD | TFT IPS LCD |
| Screen size | 5.5" inches | 6.53" inches |
| Screen-to-body ratio | ~70.8% (screen-to-body ratio) | ~83.5% (screen-to-body ratio) |
| Display resolution | 1080x1920 pixels | 1080x2340 pixels (19.5:9) |
| Touchscreen | Capacitive Multitouch | Capacitive Multitouch |
| Pixel density (dot pitch) | 401 PPI | 395 PPI |
| Colors | 16 million | 16 million |
| Scratch-resistant glass | Gorilla Glass 3 | Gorilla Glass 5 |
| Refresh rate | feature not registered | 60Hz |
| Display features | feature not registered | 450nits[typ] |
🤖 Operating System | ||
| Xiaomi Mi A1 | Redmi Note 9 (128GB Global) | |
| System version | Android 7.1.2 Nougat | Android 10 |
| Firmware update | feature not registered | Android 11 |
| User Interface | feature not registered | MIUI 11 / 12 |
⚙️ Processor | ||
| Xiaomi Mi A1 | Redmi Note 9 (128GB Global) | |
| Chipset | 64bit: Qualcomm Snapdragon 625 MSM8953 (14nm) | 64bit: MediaTek Helio G85 (12nm) |
| CPU | Octa-core, 1 processor: 8x 2GHz ARM Cortex-A53 (Octa-core) | Octa-core, 2 processors: 2x 2GHz ARM-Cortex-A75 (Dual-core) 6x 1.8GHz ARM-Cortex-A55 (Hexa-core) |
| GPU graphical controller | Qualcomm Adreno 506 650Mhz | ARM Mali-G52 MC2 (1GHz) |
| Performance (benchmark) | feature not registered | AnTuTu: 200451 (v8) Geekbench: 1292 (v5.1) |
💽 Memory and storage | ||
| Xiaomi Mi A1 | Redmi Note 9 (128GB Global) | |
| RAM memory | 4GB LPDDR3 | 4GB LPDDR4X |
| Internal storage | 64GB (54GB available) | 128GB (106GB available) eMMC 5.1 |
| External storage | Until 256GB microSD, microSDXC (hybrid slot/shares the same SIM-2 slot) | Until 512GB microSD, microSDXC (dedicated slot) |
📶 Mobile networks | ||
| Xiaomi Mi A1 | Redmi Note 9 (128GB Global) | |
| 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 (dedicated slot) |
| SIM card | 2 slots (Dual-SIM) nano-SIM (4FF) | 2 slots (Dual-SIM) nano-SIM (4FF) |
| Maximum Download / Upload | 300/50 Mbps | 300/150 Mbps |
| Network technology | 2G, 3G, 4G | 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 850/900/1900/2100 | UMTS 850/900/1700/1900/2100 |
| Primary 4G network | LTE Cat6 Global version: LTE 800/850/900/1800/2100/2600 (Bands 1,3,5,7,8,20) TD-LTE 2300/2600 (Bands 38,40) India version: LTE 850/1800/2100 (Bands 1,3,5) TD-LTE 2300/2500 (Bands 40,41) Hong Kong/Indonesia/Russia/Vietnam version: LTE 800/850/900/1700/1800/2100/2600 (Bands 1,3,4,5,7,8,20) TD-LTE 2300/2600 (Bands 38,40) | LTE Cat7 (1, 2, 3, 4, 5, 7, 8, 20, 28) TD-LTE (38, 40, 41) VoLTE |
| Primary 5G network | Not supported | Not supported |
| Primary data network | GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A | GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A |
| Secondary 2G network | GSM 850/900/1800/1900 | GSM 850/900/1800/1900 |
| Secondary 3G network | Not supported | UMTS 850/900/1700/1900/2100 |
| Secondary 4G network | Not supported | LTE Cat7 (1, 2, 3, 4, 5, 7, 8, 20, 28) TD-LTE (38, 40, 41) VoLTE |
| Secondary data network | GPRS, EDGE | GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A |
📷 Camera | ||
| Xiaomi Mi A1 | Redmi Note 9 (128GB Global) | |
| Back camera (main camera) | (dual camera) 12 megapixels 12MP f/2.650mm | (quad camera) 48 megapixels 8MP ultrawide f/2.213mm1/4"1.12µm118° 2MP macro f/2.41.75µmAF 2MP depth f/2.41/5"1.7µm |
| Main camera resolution | 4000x3000 pixels | 8000x6000 pixels |
| Video recording (primary) | 4K UHD (3840x2160) 30 fps | Full HD (1920x1080) 30 fps |
| Flash | Dual-LED flash | LED flash |
| Focal aperture | f/2.2 (aperture) | f/1.8 (aperture) |
| Focal length | 26mm lens | 26mm lens |
| Sensor size | feature not registered | 1/2" inches |
| Pixel size | 1.25µm pixel | 0.8µm pixel |
| Autofocus | PDAF: phase detection autofocus | PDAF: phase detection autofocus |
| Touch focus | Supported | Supported |
| Image stabilization | EIS: Digital stabilization | EIS: Digital stabilization |
| Zoom | Digital and optical zoom | Only digital zoom |
| Face/smile detection | Face detection, Smile detection | Face detection, Smile detection |
| BSI sensor | Not supported | Supported |
| HDR | HDR photo only main camera | HDR photo on both cameras |
| Camera extras | feature not registered | feature not registered |
📸 Front camera | ||
| Xiaomi Mi A1 | Redmi Note 9 (128GB Global) | |
| Front camera (secondary) | 5 megapixels | 13 megapixels |
| Front camera resolution | 2592x1944 pixels | 4128x3096 pixels |
| Video recording (secondary) | Full HD (1920x1080) | Full HD (1920x1080) |
| Front flash | Not supported | Not supported |
| Focal aperture | f/2.0 (aperture) | f/2.3 (aperture) |
| Focal length | feature not registered | 29mm lens |
| Sensor size | feature not registered | 1/3.06" inches |
| Pixel size | 1.12µm pixel | 1.12µm pixel |
🔉 Sound and multimedia | ||
| Xiaomi Mi A1 | Redmi Note 9 (128GB Global) | |
| Loudspeaker | Supported | Mono sound (not stereo) |
| Active noise cancellation | 2 microphones or more | 2 microphones or more |
| Radio | FM | FM |
| TV | Not supported | Not supported |
| Video formats | MP4, H.265, H.264, H.263, MKV, XviD | MP4, H.265, H.264, H.263, XviD, MKV |
| Audio formats | MP3, WAV, OGG, eAAC+, FLAC | MP3, WAV, WMA, eAAC+, FLAC |
🔌 Connectivity | ||
| Xiaomi Mi A1 | Redmi Note 9 (128GB Global) | |
| USB | USB 2.0 Type-C reversible connector | USB 2.0 Type-C, USB OTG On-The-Go |
| Audio output | 3.5mm jack | 3.5mm jack |
| TV output | Not supported | USB Type-C (reversible) |
| Bluetooth | 4.2 + A2DP | 5.0 + 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 [wifi5] (2.4GHz, 5GHz) + MIMO WiFi Direct, hotspot |
| DLNA | Not supported | Not supported |
| GPS | A-GPS, GeoTagging, GLONASS, BeiDou | A-GPS, GeoTagging, GLONASS, GALILEO, BeiDou |
| NFC | Not supported | Supported |
| Infrared port | Supported | Supported |
🧭 Sensors | ||
| Xiaomi Mi A1 | Redmi Note 9 (128GB Global) | |
| Sensors | Accelerometer Ambient light sensor Fingerprint sensor Gyroscope Hall effect Proximity sensor | Accelerometer Ambient light sensor Compass Face unlock Fingerprint sensor (rear-mounted) Gyroscope Proximity sensor |
| Vibrating alert | Supported | Supported |
🔋 Battery | ||
| Xiaomi Mi A1 | Redmi Note 9 (128GB Global) | |
| Battery type | LiPo: li-ion polymer (Non removable) | LiPo: li-ion polymer (Non removable) |
| Battery capacity | 3080 mAh | 5020 mAh |
| Charger, watts | 10W (5V/2A) Wired charging | 18W Wired fast charging 9W Reverse charging by cable |
| Inductive / wireless charging | feature not registered | Not supported |
| Talk time autonomy | feature not registered | 33 hours (1.4 days) |
| Standby | feature not registered | feature not registered |
➕ Other features | ||
| Xiaomi Mi A1 | Redmi Note 9 (128GB Global) | |
| 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: Black, Gold, Rose gold • Android One • Aluminum frame and back • Oleophobic coating screen • 450nit brightness screen • 2x optical zoom back camera • 720p@120fps slow motion • Fast battery charging • VoLTE | • Colors: Forest Green, Midnight Grey, Polar White • 22.5W charger (18W phone support) |
☢️ Radiation rate | ||
| Xiaomi Mi A1 | Redmi Note 9 (128GB Global) | |
| SAR 1.6W/kg (USA, Mexico, etc.) | feature not registered | 0.84W/kg (head), 0.9W/kg (body) |
| SAR 2W/kg (Europe, UK, etc.) | feature not registered | 0.8W/kg (head), 1.14W/kg (body) |