In depth comparison and review of ASUS ZenFone Zoom (ZX551ML) and Xiaomi Redmi A1. Compare sizes, cameras, batteries, memory, and other important specifications and features to easily choose the right phone for you. Our goal is to help you uncover differences between the products and find the phone that will best fit your needs.
| DESIGN AND DIMENSIONS | ASUS ZenFone Zoom (ZX551ML) | Xiaomi Redmi A1 |
|---|
| Product Type | Smartphone | Smartphone | |
|---|---|---|---|
| Manufacturer Model Number | ZX551ML | - | |
| Form Factor | Touch | Touch | |
| Height | 158.9 mm | 164.9 mm | Xiaomi Redmi A1 has greater height than ASUS ZenFone Zoom (ZX551ML). |
| Width | 78.8 mm | 76.75 mm | ASUS ZenFone Zoom (ZX551ML) has greater width than Xiaomi Redmi A1. |
| Depth | 12 mm | 9.09 mm | Xiaomi Redmi A1 is narrower than ASUS ZenFone Zoom (ZX551ML). |
| Weight | 185 g | 192 g | ASUS ZenFone Zoom (ZX551ML) is lighter than ASUS ZenFone Zoom (ZX551ML). |
| Body Colour | Ceramic white | Pure black | Light green | |
| Waterproof (Water-resistant) | - | - | |
| SAR Value | 0.432 W/kg (body), 0.343 W/kg (head) | 0.997 W/kg (body), 0.846 W/kg (head), 2.541 W/kg (limb) | |
| Integrated Components | - | FM radio | |
| Connector Type | Headset jack - mini-phone 3.5mm Micro-USB - 5 pin Micro-USB Type B |
Micro-USB - 5 pin Micro-USB Type B Headset jack - mini-phone 3.5mm |
|
| SIM Card Type (Size) | Micro SIM | - | |
| SIM Card Qty | - | Dual-SIM |
| DISPLAY | ASUS ZenFone Zoom (ZX551ML) | Xiaomi Redmi A1 |
|---|
| Display Type | LCD display | - | |
|---|---|---|---|
| Display Technology | IPS | - | |
| Screen Size (Display Size) | 5.5" | 6.52" | Xiaomi Redmi A1 has larger screen size than ASUS ZenFone Zoom (ZX551ML). |
| Screen Resolution (Display Resolution) | 1920 x 1080 pixels | 1600 x 720 pixels | ASUS ZenFone Zoom (ZX551ML) has better screen resolution than Xiaomi Redmi A1. |
| Display Format | Full HD | HD+ | |
| Pixel Density | 401 ppi | - | |
| Aspect Ratio | - | 20:9 | |
| Colour Depth | 16.7 million colours | - | |
| Display Features | - | Night light screen, Dot Drop display | |
| Display Protection (Screen Protector) | Corning Gorilla Glass 4 (scratch resistant glass) | - |
| PROCESSOR | ASUS ZenFone Zoom (ZX551ML) | Xiaomi Redmi A1 |
|---|
| Processor Type (CPU) | Intel Atom | MediaTek Helio A22 | |
|---|---|---|---|
| Processor Number | Z3590 | - | |
| Clock Speed | 2.5 GHz | 2 GHz | ASUS ZenFone Zoom (ZX551ML) has higher clock speed than Xiaomi Redmi A1. |
| Processor Core Qty | Quad-core | Quad-core | Both phones have the same number of phone cores. |
| Graphics System (GPU) | PowerVR G6430 | - |
| MEMORY | ASUS ZenFone Zoom (ZX551ML) | Xiaomi Redmi A1 |
|---|
| RAM | 4 GB | LPDDR4X SDRAM - 2 GB | ASUS ZenFone Zoom (ZX551ML) has more RAM than Xiaomi Redmi A1. |
|---|---|---|---|
| Internal Memory Size (Storage Capacity) | 32 GB | 32 GB | Both phones have the same internal memory capacity. |
| Memory Interface | - | eMMC 5.1 | |
| Supported Flash Memory Cards (Expandable Memory) | microSDHC, microSDXC - up to 128 GB | microSDHC, microSD, microSDXC - up to 1 TB |
| CAMERA | ASUS ZenFone Zoom (ZX551ML) | Xiaomi Redmi A1 |
|---|
| MAIN CAMERA |
|---|
| Number of Main Cameras | 1 | 2 | |
|---|---|---|---|
| Sensor Resolution | 13 Megapixel | 8 Megapixel | ASUS ZenFone Zoom (ZX551ML) has better camera resolution than Xiaomi Redmi A1. |
| Lens Aperture | F/2.7-4.8 | F/2.0 | Xiaomi Redmi A1 has better lens aperture than ASUS ZenFone Zoom (ZX551ML). |
| Optical Image Stabiliser (OIS) | Optical Image Stabiliser (OIS) | - | ASUS ZenFone Zoom (ZX551ML) has optical stabilisation. |
| Focus Adjustment | Automatic | - | |
| Laser Auto Focus | Yes | - | |
| Digital Zoom | 3x | - | |
| Special Effects | - | HDR | |
| HDR Mode | Auto HDR mode | - | |
| Camera Modes | Panorama | Time-lapse mode, portrait mode, Short video mode | |
| Face Recognition (Face ID) | Face detection | - | ASUS ZenFone Zoom (ZX551ML) has face detection. |
| Light Source | Dual LED flash | LED flash | |
| Video Resolutions | 1920 x 1080 (1080p) | 1920 x 1080 (1080p) at 30 fps, 1280 x 720 (720p) at 30 fps | |
| Camera Features (Functions) | - | AI Dual camera |
| SECOND CAMERA |
|---|
| Sensor Resolution (2nd Camera) | - | 8 Megapixel |
|---|
| FRONT CAMERA |
|---|
| Number of Front Cameras | 1 | 1 | |
|---|---|---|---|
| Sensor Resolution (Front) | 5 Megapixel | 5 Megapixel | Both phones have the same front camera resolution. |
| Lens Aperture (Front) | F/2.0 | F/2.2 | ASUS ZenFone Zoom (ZX551ML) has better front lens aperture than ASUS ZenFone Zoom (ZX551ML). |
| Camera Modes (Front) | - | Beautify | |
| Video Resolutions (Front) | - | 1920 x 1080 (1080p) at 30 fps, 1280 x 720 (720p) at 30 fps | |
| Camera Features (Front) | - | AI Selfie |
| BATTERY AND CHARGING | ASUS ZenFone Zoom (ZX551ML) | Xiaomi Redmi A1 |
|---|
| Battery Capacity (Battery Size) | 3000 mAh | 5000 mAh | Xiaomi Redmi A1 has larger battery capacity than ASUS ZenFone Zoom (ZX551ML). |
|---|---|---|---|
| Standby Time | - | 746 hours | |
| Talk Time | - | 1800 minutes | |
| Run Time Details | - | Talk: up to 1800 min Standby: up to 746 hrs Playback (video): up to 22 hrs Playback (Music): up to 161 hrs |
|
| Battery Technology | Lithium polymer | - |
| CELLULAR | ASUS ZenFone Zoom (ZX551ML) | Xiaomi Redmi A1 |
|---|
| Technology | WCDMA (UMTS) / GSM | WCDMA (UMTS) / GSM | |
|---|---|---|---|
| Mobile Broadband Generation | 4G | 4G | Both phones have the same mobile network generation. |
| Operating System | Android 5.0 (Lollipop) | Android 12 (Go edition) | |
| User Interface | ASUS ZenUI 2.0 | - | |
| Navigation | A-GPS, GLONASS, BeiDou | GPS, GLONASS, BeiDou, Galileo |
| COMMUNICATIONS | ASUS ZenFone Zoom (ZX551ML) | Xiaomi Redmi A1 |
|---|
| Data Transmission | GPRS, EDGE, HSDPA, HSUPA, HSPA+, LTE | FDD-LTE, TDD-LTE | |
|---|---|---|---|
| 2G Band | 850 GSM, 1800 GSM, 1900 GSM | 850 GSM, 900 GSM, 1800 GSM, 1900 GSM | |
| 3G UMTS Band | - | Band 1, Band 5, Band 8 | |
| 3G UMTS Frequency | - | 2100, 850, 900 | |
| 4G LTE Band | Band 1, Band 2, Band 3, Band 5, Band 7, Band 8, Band 9, Band 18, Band 19, Band 28 | Band 1, Band 3, Band 5, Band 7, Band 8, Band 20, Band 28, Band 38, Band 40, Band 41 | |
| 4G LTE Frequency | FDD 2100, FDD 1900 PCS, FDD 1800+, FDD 850, FDD 2600, FDD 900, FDD 1800, FDD 800 lower, FDD 800 upper, FDD 700 APT | FDD 2100, FDD 1800+, FDD 850, FDD 2600, FDD 900, FDD 800 DD, FDD 700 APT, TDD 2600, TDD 2300, TDD 2500 | |
| Wireless Interface | IEEE 802.11a/b/g/n/ac | Wi-Fi | |
| Bluetooth | Bluetooth 4.0 | Bluetooth 5.0 | |
| Bluetooth Profiles | A2DP | - | |
| NFC | Yes | - | ASUS ZenFone Zoom (ZX551ML) has NFC reader for mobile payments. |
| Messaging Services | SMS, MMS | - |
| FEATURES | ASUS ZenFone Zoom (ZX551ML) | Xiaomi Redmi A1 |
|---|
| Phone Functions | Speakerphone, call timer, conference call, vibrating alert | - | |
|---|---|---|---|
| Sensors | Accelerometer, proximity sensor, digital compass, gyro sensor | Accelerometer | |
| Additional Phone Features | Multitasking | Fast Charging |
| OTHERS | ASUS ZenFone Zoom (ZX551ML) | Xiaomi Redmi A1 |
|---|
| Included Accessories | Power adapter | USB cable, SIM card removal tool, 10W charger |
|---|
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