In depth comparison and review of Motorola Moto G31 and ASUS Zenfone 8. 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 | Motorola Moto G31 | ASUS Zenfone 8 |
|---|
| Product Type | Smartphone | Smartphone | |
|---|---|---|---|
| Manufacturer Model Number | - | ZS590KS | |
| Form Factor | Touch | Touch | |
| Height | 161.89 mm | 148 mm | Motorola Moto G31 has greater height than ASUS Zenfone 8. |
| Width | 73.87 mm | 68.5 mm | Motorola Moto G31 has greater width than ASUS Zenfone 8. |
| Depth | 8.55 mm | 8.9 mm | Motorola Moto G31 is narrower than Motorola Moto G31. |
| Weight | 181 g | 169 g | ASUS Zenfone 8 is lighter than Motorola Moto G31. |
| Body Colour | Mineral grey | Baby blue | Obsidian black | |
| Body Material | Plastic | - | |
| Protection | - | Drop-proof, water-resistant, dust-resistant | |
| Waterproof (Water-resistant) | - | Yes | ASUS Zenfone 8 is waterproof. |
| IP rating | - | IP68, IP65 | |
| SAR Value | 1.46 W/kg (body), 0.67 W/kg (head) | 1.582 W/kg (body), 1.412 W/kg (head), 3.498 W/kg (limb) | |
| Integrated Components | - | FM radio | |
| Connector Type | USB Type-C - 24 pin USB-C Headset jack - mini-phone 3.5mm |
USB Type-C - 24 pin USB-C Headset jack - mini-phone 3.5mm |
|
| SIM Card Type (Size) | Nano SIM | Nano SIM | |
| SIM Card Qty | Dual-SIM | Dual-SIM | |
| SIM Card Configuration Details | Nano SIM + nano SIM/microSD | - |
| DISPLAY | Motorola Moto G31 | ASUS Zenfone 8 |
|---|
| Display Type | OLED display | OLED display | |
|---|---|---|---|
| Display Technology | OLED | AMOLED | |
| Screen Size (Display Size) | 6.4" | 5.9" | Motorola Moto G31 has larger screen size than ASUS Zenfone 8. |
| Screen Resolution (Display Resolution) | 2400 x 1080 pixels | 2400 x 1080 pixels | Both phones have the same screen resolution. |
| Display Format | Full HD+ | Full HD+ | |
| Pixel Density | 409 ppi | - | |
| Aspect Ratio | 20:9 | 20:9 | |
| Max Brightness | - | 1100 cd/m² | |
| HDR | - | Yes | ASUS Zenfone 8 has HDR. |
| HDR Technology | - | HDR10+ | |
| Display Enhancement Technology | - | DC Dimming | |
| Display Refresh Rate | 60 Hz | 120 Hz | ASUS Zenfone 8 has better refresh rate than Motorola Moto G31. |
| Touch Sampling Rate | - | 240 Hz | |
| Display Features | Max Vision display | Always-on display, Glove Touch, Delta-E < 1, 107% NTSC, 151.9% sRGB, 112% DCI-P3 | |
| Display Protection (Screen Protector) | - | Corning Gorilla Glass Victus (scratch resistant glass) |
| PROCESSOR | Motorola Moto G31 | ASUS Zenfone 8 |
|---|
| Processor Type (CPU) | MediaTek Helio G85 | Qualcomm Snapdragon 888 5G | |
|---|---|---|---|
| Clock Speed | 2 GHz | 2.842 GHz | ASUS Zenfone 8 has higher clock speed than Motorola Moto G31. |
| Processor Core Qty | 8-core | 8-core | Both phones have the same number of phone cores. |
| Graphics System (GPU) | ARM Mali-G52 MC2 | Qualcomm ADRENO 660 |
| MEMORY | Motorola Moto G31 | ASUS Zenfone 8 |
|---|
| RAM | 4 GB | LPDDR5 SDRAM - 8 GB | ASUS Zenfone 8 has more RAM than Motorola Moto G31. |
|---|---|---|---|
| Internal Memory Size (Storage Capacity) | 64 GB | 128 GB | ASUS Zenfone 8 has more internal memory than Motorola Moto G31. |
| Memory Interface | - | UFS 3.1 | |
| Supported Flash Memory Cards (Expandable Memory) | microSDHC, microSD, microSDXC - up to 1 TB | - |
| CAMERA | Motorola Moto G31 | ASUS Zenfone 8 |
|---|
| MAIN CAMERA |
|---|
| Number of Main Cameras | 4 | 2 | |
|---|---|---|---|
| Sensor Resolution | 50 Megapixel | 64 Megapixel | ASUS Zenfone 8 has better camera resolution than Motorola Moto G31. |
| Sensor Size | - | 1/1.7" | |
| Sensor Name | - | Sony Exmor RS IMX686 sensor | |
| Lens Type | - | Wide-angle lens | |
| Lens Aperture | F/1.8 | F/1.8 | Both phones have the same camera lens aperture. |
| Field of View (FoV) | - | 78.3 degree(s) | |
| Pixel Size | 1.28 μm | 1.6 μm | ASUS Zenfone 8 has larger camera pixel size than Motorola Moto G31. |
| Optical Image Stabiliser (OIS) | - | Optical Image Stabiliser (OIS) | ASUS Zenfone 8 has optical stabilisation. |
| Focus Adjustment | Automatic | - | |
| Minimum Focal Length (Focal Distance) | - | 26.6 mm | |
| Self-Timer Delay | Yes | - | |
| Special Effects | HDR, Spot Colour | - | |
| Camera Modes | Panorama, Pro mode, Timer mode, BurstShot, Watermark mode, Active photos, Cinemagraph, Portrait, Night Vision, AR stickers, Levelling, Macro Vision, Long exposure mode, Live filter, Capture Dual | Slow motion video, Time-lapse mode, Pro mode | |
| Face Recognition (Face ID) | Auto smile capture | - | Motorola Moto G31 has face detection. |
| Light Source | LED flash | LED flash | |
| Video Resolutions | 1920 x 1080 (1080p) at 30 fps, 1280 x 720 (720p) at 30 fps | 1920 x 1080 (1080p) at 30 fps, 1920 x 1080 (1080p) at 60 fps, 1280 x 720 (720p) at 30 fps, 3840 x 2160 (4K) at 30 fps, 3840 x 2160 (4K) at 60 fps, Slo-mo video 1920 x 1080 (1080p) at 240 fps, Slo-mo video 1280 x 720 (720p) at 480 fps, 7680 x 4320 (8K) at 24 fps, Slo-mo video 3840 x 2160 (4K) at 120 fps | |
| Camera Features (Functions) | Phase Detect Auto-Focus (PDAF), Barcode Scanner, Cutout, Quad Pixel technology, smart composition, RAW photo output, shot optimisation, Google Lens, High-res digital zoom (up to 8x), Assistive Grid | Phase Detect Auto-Focus (PDAF), 3-axis electronic image stabilisation, 4-axis optical image stabilisation, Motion tracking, Quad Bayer technology, 2x1 On-Chip Lens (OCL) |
| SECOND CAMERA |
|---|
| Sensor Resolution (2nd Camera) | 8 Megapixel | 12 Megapixel | ASUS Zenfone 8 has better second camera resolution than Motorola Moto G31. |
|---|---|---|---|
| Sensor Size (2nd Camera) | - | 1/2.55" | |
| Sensor Name (2nd Camera) | - | Sony Exmor RS IMX363 sensor | |
| Lens Type (2nd Camera) | Ultra wide-angle lens | Ultra wide-angle lens | |
| Lens Aperture (2nd Camera) | F/2.2 | F/2.2 | Both phones have the same second camera lens aperture. |
| Field of View (2nd Camera) | 118 degree(s) | - | |
| Pixel Size (2nd Camera) | 1.12 μm | 1.4 μm | ASUS Zenfone 8 has larger second camera pixel size than Motorola Moto G31. |
| Focal Length Equivalent to 35mm Camera | - | 14.3 | |
| Camera Functions (2nd Camera) | Depth camera | - | |
| Camera Features (2nd Camera) | - | Real-time distortion correction, 4cm macro photography, Dual Phase Detect Auto-Focus (PDAF) |
| THIRD CAMERA |
|---|
| Sensor Resolution (3rd Camera) | 2 Megapixel | - | |
|---|---|---|---|
| Lens Aperture (3rd Camera) | F/2.4 | - | |
| Pixel Size (3rd Camera) | 1.75 μm | - | |
| Camera Functions (3rd Camera) | Macro camera | - |
| FOURTH CAMERA |
|---|
| Lens Aperture (4th Camera) | F/2.4 | - | |
|---|---|---|---|
| Pixel Size (4th Camera) | 1.75 μm | - | |
| Camera Functions (4th Camera) | Depth camera | - |
| FRONT CAMERA |
|---|
| Number of Front Cameras | 1 | 1 | |
|---|---|---|---|
| Sensor Resolution (Front) | 13 Megapixel | 12 Megapixel | Motorola Moto G31 has better front camera resolution than ASUS Zenfone 8. |
| Sensor Name (Front) | - | Sony Exmor RS IMX663 sensor | |
| Lens Aperture (Front) | F/2.2 | F/2.4 | Motorola Moto G31 has better front lens aperture than Motorola Moto G31. |
| Pixel Size (Front) | 1.12 μm | 1.22 μm | ASUS Zenfone 8 has larger front camera pixel size than Motorola Moto G31. |
| Focus Adjustment | - | Automatic | |
| Special Effects (Front) | HDR, Spot Colour | - | |
| Camera Modes (Front) | Slow motion video, Pro mode, Timer mode, BurstShot, HYPERLAPSE, Watermark mode, portrait mode, Face Beauty, Timelapse video, Active photos, Cinemagraph, Portrait, Night Vision, Levelling, Gesture selfie, Group selfie, Long exposure mode, Live filter, Low Light AI Selfie, Capture Dual, Gesture Capture | Portrait | |
| Face Recognition (Face ID) | Auto smile capture | - | Motorola Moto G31 has face detection. |
| Video Resolutions (Front) | 1920 x 1080 (1080p) at 30 fps | - | |
| Camera Features (Front) | Video image stabilisation, RAW photo, Shot optimisation, Selfie animation, Assistive grid | Dual Pixel technology, EIS video stabilisation, Dual Phase Detect Auto-Focus (PDAF) |
| BATTERY AND CHARGING | Motorola Moto G31 | ASUS Zenfone 8 |
|---|
| Battery Capacity (Battery Size) | 5000 mAh | 4000 mAh | Motorola Moto G31 has larger battery capacity than ASUS Zenfone 8. |
|---|---|---|---|
| Fast Charging Technology | - | Qualcomm Quick Charge 4.0, Power Delivery 3.0 | ASUS Zenfone 8 has fast charging technology. |
| Run Time Details | Standard usage: up to 36 hrs | - |
| CELLULAR | Motorola Moto G31 | ASUS Zenfone 8 |
|---|
| Technology | WCDMA (UMTS) / GSM | WCDMA (UMTS) / GSM | |
|---|---|---|---|
| Mobile Broadband Generation | 4G | 5G | ASUS Zenfone 8 has more advanced generation mobile network. |
| Operating System | Android 11 | Android 11 | |
| User Interface | - | ASUS ZenUI 8.0 | |
| Intelligent Assistant | Google Assistant | - | |
| Navigation | GPS, A-GPS, GLONASS, Galileo | GPS, GLONASS, BeiDou, Galileo, QZSS, NavIC |
| COMMUNICATIONS | Motorola Moto G31 | ASUS Zenfone 8 |
|---|
| Data Transmission | LTE | GPRS, EDGE, HSPA+, FDD-LTE, TDD-LTE, DC-HSPA+, Gigabit LTE, 5G NR FR1 | |
|---|---|---|---|
| 2G Band | - | 850 GSM, 900 GSM, 1800 GSM, 1900 GSM | |
| 3G UMTS Band | - | Band 1, Band 2, Band 3, Band 4, Band 5, Band 6, Band 8, Band 19 | |
| 3G UMTS Frequency | - | 2100, 1900, 1800, 1700, 850, 800, 900, 800 | |
| 4G LTE Band | - | Band 1, Band 2, Band 3, Band 4, Band 5, Band 7, Band 8, Band 12, Band 17, Band 18, Band 19, Band 20, Band 26, Band 28, Band 34, Band 38, Band 39, Band 40, Band 41, Band 42 | |
| 4G LTE Frequency | - | FDD 2100, FDD 1900 PCS, FDD 1800+, FDD 1700 - 2110 AWS, FDD 850, FDD 2600, FDD 900, FDD 700a, FDD 700b, FDD 800 lower, FDD 800 upper, FDD 800 DD, FDD 850+, FDD 700 APT, TDD 2000, TDD 2600, TDD 1900, TDD 2300, TDD 2500, TDD 3500 | |
| 5G NR Band | - | N1, n2, n3, n5, n7, n8, n20, n28, n38, n77, n78, n12 | |
| 5G NR Frequency | - | FDD 2100, FDD 1900PCS, FDD 1800, FDD 850, FDD 2600, FDD 900, FDD 800, FDD 700APT, TDD TD 2600, TDD TD 3700, TDD TD 3500, n12 | |
| Wireless Interface | IEEE 802.11a/b/g/n/ac | IEEE 802.11a/b/g/n/ac/ax | |
| Bluetooth | Bluetooth 5.0 | Bluetooth 5.2 EDR | |
| Bluetooth Profiles | - | HFP, OPP, PAN, A2DP, AVRCP, HID | |
| NFC | Yes | Yes | Both phones have an NFC reader for mobile payments. |
| Modem | - | Snapdragon X60 5G |
| MEDIA | Motorola Moto G31 | ASUS Zenfone 8 |
|---|
| Supported Digital Audio Standards | Dolby Atmos | - | |
|---|---|---|---|
| Sound Enhancements | - | Dirac HD Sound, ASUS Audio Wizard, Hi-Res audio certified, OZO Audio, Qualcomm aptX audio, Qualcomm aptX HD audio, Qualcomm aptX Adaptive | |
| Audio Amplifier | - | Dual Cirrus Logic CS35L45 |
| FEATURES | Motorola Moto G31 | ASUS Zenfone 8 |
|---|
| Sensors | Accelerometer, ambient light sensor, proximity sensor, digital compass, SAR sensor, gyroscope | Accelerometer, ambient light sensor, proximity sensor, digital compass, G-sensor, gyroscope | |
|---|---|---|---|
| Security Devices | Face recognition, fingerprint reader | Fingerprint reader (under display), face recognition | |
| Security Technology | Face Unlock | - | |
| Additional Phone Features | Dual microphones | MIMO technology, AudioWizard, One Hand Mode, ARCore, Triple internal microphones with ASUS Noise Reduction Technology, Multi-Magnet Stereo Speakers |
| OTHERS | Motorola Moto G31 | ASUS Zenfone 8 |
|---|
| Included Accessories | Protective cover, USB cable, SIM card removal tool, 10W charger | SIM card removal tool, USB-C to USB-C cable, protective case, power adapter (30 W) | |
|---|---|---|---|
| Compliant Standards | - | IP68, IP65, SGS Eye Care Display Certification, SGS Seamless Pro 120Hz Certification | |
| Max Height of Shock Resistance | - | 2 m |
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