In depth comparison and review of ASUS Zenfone 8 and Motorola RAZR 40. 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 8 | Motorola RAZR 40 |
|---|
| Product Type | Smartphone | Smartphone | |
|---|---|---|---|
| Manufacturer Model Number | ZS590KS | - | |
| Form Factor | Touch | Folder (flip) - touch screen, dual screen | |
| Height | 148 mm | 170.82 mm | Motorola RAZR 40 has greater height than ASUS Zenfone 8. |
| Width | 68.5 mm | 73.95 mm | Motorola RAZR 40 has greater width than ASUS Zenfone 8. |
| Depth | 8.9 mm | 7.35 mm | Motorola RAZR 40 is narrower than ASUS Zenfone 8. |
| Weight | 169 g | 188.6 g | ASUS Zenfone 8 is lighter than ASUS Zenfone 8. |
| Dimensions Details | - | Unfolded - 73.95 mm x 7.35 mm x 170.82 mm Folded - 73.95 mm x 15.8 mm x 88.24 mm |
|
| Body Colour | Obsidian black | Vanilla cream | Sage green | Summer lilac | |
| Body Material | - | Vegan leather, 7000 Series aluminium, Corning Gorilla Glass Victus | |
| Protection | Drop-proof, water-resistant, dust-resistant | Splashproof | |
| Waterproof (Water-resistant) | Yes | - | ASUS Zenfone 8 is waterproof. |
| IP rating | IP68, IP65 | IP52 | |
| SAR Value | 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 | |
| SIM Card Type (Size) | Nano SIM | Nano SIM, Electronic SIM card (e-SIM) | |
| SIM Card Qty | Dual-SIM | Dual-SIM |
| DISPLAY | ASUS Zenfone 8 | Motorola RAZR 40 |
|---|
| Display Type | OLED display | pOLED display | |
|---|---|---|---|
| Display Technology | AMOLED | AMOLED (LTPO) | |
| Foldable Display | - | Yes | |
| Display Design | - | Inward folding | |
| Screen Size (Display Size) | 5.9" | 6.9" | Motorola RAZR 40 has larger screen size than ASUS Zenfone 8. |
| Screen Resolution (Display Resolution) | 2400 x 1080 pixels | 2640 x 1080 pixels | Motorola RAZR 40 has better screen resolution than ASUS Zenfone 8. |
| Display Format | Full HD+ | Full HD+ | |
| Pixel Density | - | 413 ppi | |
| Aspect Ratio | 20:9 | 22:9 | |
| Max Brightness | 1100 cd/m² | 1400 cd/m² | Motorola RAZR 40 has better display brightness than ASUS Zenfone 8. |
| Colour Depth | - | 1.07 billion colours | |
| HDR | Yes | Yes | Both phones have HDR. |
| HDR Technology | HDR10+ | HDR10+ | |
| Display Enhancement Technology | DC Dimming | - | |
| Display Refresh Rate | 120 Hz | 144 Hz | Motorola RAZR 40 has better refresh rate than ASUS Zenfone 8. |
| Touch Sampling Rate | 240 Hz | 360 Hz | |
| Display Features | Always-on display, Glove Touch, Delta-E < 1, 107% NTSC, 151.9% sRGB, 112% DCI-P3 | DCI-P3 Wide colour gamut, secondary screen: 282 PPI | |
| Display Protection (Screen Protector) | Corning Gorilla Glass Victus (scratch resistant glass) | - |
| SECOND DISPLAY |
|---|
| Second Display Type | - | OLED display - colour | |
|---|---|---|---|
| Second Display Screen Size | - | 1.5" | |
| Second Display Resolution | - | 194 x 368 pixels |
| PROCESSOR | ASUS Zenfone 8 | Motorola RAZR 40 |
|---|
| Processor Type (CPU) | Qualcomm Snapdragon 888 5G | Qualcomm Snapdragon 7 Gen 1 | |
|---|---|---|---|
| Clock Speed | 2.842 GHz | 2.4 GHz | ASUS Zenfone 8 has higher clock speed than Motorola RAZR 40. |
| Processor Core Qty | 8-core | - | |
| Graphics System (GPU) | Qualcomm ADRENO 660 | Qualcomm ADRENO 644 |
| MEMORY | ASUS Zenfone 8 | Motorola RAZR 40 |
|---|
| RAM | LPDDR5 SDRAM - 8 GB | LPDDR4X SDRAM - 8 GB | Both phones have the same RAM size. |
|---|---|---|---|
| Internal Memory Size (Storage Capacity) | 128 GB | 256 GB | Motorola RAZR 40 has more internal memory than ASUS Zenfone 8. |
| Memory Interface | UFS 3.1 | UFS 2.2 |
| CAMERA | ASUS Zenfone 8 | Motorola RAZR 40 |
|---|
| MAIN CAMERA |
|---|
| Number of Main Cameras | 2 | 2 | |
|---|---|---|---|
| Sensor Resolution | 64 Megapixel | 64 Megapixel | Both phones have the same camera resolution. |
| Sensor Size | 1/1.7" | - | |
| Sensor Name | Sony Exmor RS IMX686 sensor | - | |
| Lens Type | Wide-angle lens | - | |
| Lens Aperture | F/1.8 | F/1.7 | Motorola RAZR 40 has better lens aperture than ASUS Zenfone 8. |
| Field of View (FoV) | 78.3 degree(s) | - | |
| Pixel Size | 1.6 μm | 0.7 μm | ASUS Zenfone 8 has larger camera pixel size than Motorola RAZR 40. |
| Optical Image Stabiliser (OIS) | Optical Image Stabiliser (OIS) | Optical Image Stabiliser (OIS) | Both phones have optical image stabilization. |
| Focus Adjustment | - | Automatic | |
| Laser Auto Focus | - | Yes | |
| Minimum Focal Length (Focal Distance) | 26.6 mm | - | |
| Self-Timer Delay | - | Yes | |
| Special Effects | - | HDR, Spot Colour | |
| Camera Modes | Slow motion video, Time-lapse mode, Pro mode | Panorama, Pro mode, BurstShot, Quick Shot, Watermark mode, tap anywhere to capture, Active photos, Portrait, Night Vision, Portrait video, Hyperlapse video, Live filter, Ultra-Res, Capture Dual, Scanner, Auto night vision, smart high resolution | |
| Face Recognition (Face ID) | - | Auto smile capture | Motorola RAZR 40 has face detection. |
| Light Source | LED flash | LED flash | |
| Video Resolutions | 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 | 1920 x 1080 (1080p) at 30 fps, 1920 x 1080 (1080p) at 60 fps, 3840 x 2160 (4K) at 30 fps | |
| Camera Features (Functions) | 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) | Auto-Macro, video stabilisation, smart composition, Audio zoom, levelling, shot optimisation, Google Lens, Assistive Grid, Quad Pixel technology for 1.4 µm, keep last mode, horizon lock, smart noise cancellation |
| SECOND CAMERA |
|---|
| Sensor Resolution (2nd Camera) | 12 Megapixel | 13 Megapixel | Motorola RAZR 40 has better second camera resolution than ASUS Zenfone 8. |
|---|---|---|---|
| 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) | - | 120 degree(s) | |
| Pixel Size (2nd Camera) | 1.4 μm | 1.12 μm | ASUS Zenfone 8 has larger second camera pixel size than Motorola RAZR 40. |
| Focal Length Equivalent to 35mm Camera | 14.3 | - | |
| Camera Functions (2nd Camera) | - | Macro camera | |
| Camera Features (2nd Camera) | Real-time distortion correction, 4cm macro photography, Dual Phase Detect Auto-Focus (PDAF) | - |
| FRONT CAMERA |
|---|
| Number of Front Cameras | 1 | 1 | |
|---|---|---|---|
| Sensor Resolution (Front) | 12 Megapixel | 32 Megapixel | Motorola RAZR 40 has better front camera resolution than ASUS Zenfone 8. |
| Sensor Name (Front) | Sony Exmor RS IMX663 sensor | - | |
| Lens Aperture (Front) | F/2.4 | F/2.4 | Both phones have the same front camera lens aperture. |
| Pixel Size (Front) | 1.22 μm | 0.7 μm | ASUS Zenfone 8 has larger front camera pixel size than Motorola RAZR 40. |
| Focus Adjustment | Automatic | Fixed focus | |
| Special Effects (Front) | - | HDR, photo booth, Spot Colour | |
| Camera Modes (Front) | Portrait | Pro mode, BurstShot, Quick Shot, Watermark mode, Face Beauty, tap anywhere to capture, Active photos, Selfie Mirror, Portrait video, Gesture selfie, Hyperlapse video, Live filter, Capture Dual, Portrait mode beauty, Auto night vision | |
| Face Recognition (Face ID) | - | Auto smile capture | Motorola RAZR 40 has face detection. |
| Light Source (Front) | - | Display flash | |
| Video Resolutions (Front) | - | 1920 x 1080 (1080p) at 30 fps, 1920 x 1080 (1080p) at 60 fps, 3840 x 2160 (4K) at 30 fps | |
| Camera Features (Front) | Dual Pixel technology, EIS video stabilisation, Dual Phase Detect Auto-Focus (PDAF) | Self-timer, video stabilisation, Quad Pixel technology for 1.4 µm, levelling, Selfie animation, Assistive grid, keep last mode, smart noise cancellation |
| BATTERY AND CHARGING | ASUS Zenfone 8 | Motorola RAZR 40 |
|---|
| Battery Capacity (Battery Size) | 4000 mAh | 4200 mAh | Motorola RAZR 40 has larger battery capacity than ASUS Zenfone 8. |
|---|---|---|---|
| Fast Charging Technology | Qualcomm Quick Charge 4.0, Power Delivery 3.0 | TurboPower technology | Both phones have fast charging technology. |
| Wireless Charging | - | Yes | Motorola RAZR 40 can be charged wirelessly. |
| CELLULAR | ASUS Zenfone 8 | Motorola RAZR 40 |
|---|
| Technology | WCDMA (UMTS) / GSM | WCDMA (UMTS) / GSM | |
|---|---|---|---|
| Mobile Broadband Generation | 5G | 5G | Both phones have the same mobile network generation. |
| Operating System | Android 11 | Android 13 | |
| User Interface | ASUS ZenUI 8.0 | My UX | |
| Intelligent Assistant | - | Google Assistant | |
| Navigation | GPS, GLONASS, BeiDou, Galileo, QZSS, NavIC | GPS, A-GPS, GLONASS, BeiDou, Galileo, LTEPP, SUPL |
| COMMUNICATIONS | ASUS Zenfone 8 | Motorola RAZR 40 |
|---|
| Data Transmission | GPRS, EDGE, HSPA+, FDD-LTE, TDD-LTE, DC-HSPA+, Gigabit LTE, 5G NR FR1 | EDGE, HSPA+, 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 | Band 1, Band 2, Band 4, Band 5, Band 8 | |
| 3G UMTS Frequency | 2100, 1900, 1800, 1700, 850, 800, 900, 800 | 2100, 1900, 1700, 850, 900 | |
| 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 | Band 1, Band 2, Band 3, Band 4, Band 5, Band 7, Band 8, Band 12, Band 13, Band 17, Band 18, Band 19, Band 20, Band 25, Band 26, Band 28, Band 32, Band 38, Band 39, Band 40, Band 41, Band 42, Band 43, Band 48, Band 66 | |
| 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 | FDD 2100, FDD 1900 PCS, FDD 1800+, FDD 1700 - 2110 AWS, FDD 850, FDD 2600, FDD 900, FDD 700a, FDD 700c, FDD 700b, FDD 800 lower, FDD 800 upper, FDD 800 DD, FDD 1900+, FDD 850+, FDD 700 APT, FDD 1500 L, TDD 2600, TDD 1900, TDD 2300, TDD 2500, TDD 3500, TDD 3700, TDD 3600, FDD 1700 - 2110 AWS-3 | |
| 5G NR Band | N1, n2, n3, n5, n7, n8, n20, n28, n38, n77, n78, n12 | N1, n2, n3, n5, n7, n8, n20, n28, n38, n41, n66, n77, n78, n40, n26 | |
| 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 | FDD 2100, FDD 1900PCS, FDD 1800, FDD 850, FDD 2600, FDD 900, FDD 800, FDD 700APT, TDD TD 2600, TDD TD 2500, FDD AWS-3, TDD TD 3700, TDD TD 3500, TDD 2300, FDD 850 | |
| Wireless Interface | IEEE 802.11a/b/g/n/ac/ax | IEEE 802.11a/b/g/n/ac/ax | |
| Bluetooth | Bluetooth 5.2 EDR | Bluetooth 5.3 | |
| 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 | ASUS Zenfone 8 | Motorola RAZR 40 |
|---|
| 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 | Surround sound, dual stereo speakers tuned by Dolby | |
| Audio Amplifier | Dual Cirrus Logic CS35L45 | - |
| FEATURES | ASUS Zenfone 8 | Motorola RAZR 40 |
|---|
| Sensors | Accelerometer, ambient light sensor, proximity sensor, digital compass, G-sensor, gyroscope | Accelerometer, ambient light sensor, proximity sensor, digital compass, barometer, hall sensor, ultrasonic sensor, gyroscope | |
|---|---|---|---|
| Security Devices | Fingerprint reader (under display), face recognition | Face recognition, fingerprint reader (side) | |
| Security Technology | - | Face Unlock | |
| Additional Phone Features | MIMO technology, AudioWizard, One Hand Mode, ARCore, Triple internal microphones with ASUS Noise Reduction Technology, Multi-Magnet Stereo Speakers | Three microphones, dual stereo speakers |
| OTHERS | ASUS Zenfone 8 | Motorola RAZR 40 |
|---|
| Included Accessories | SIM card removal tool, USB-C to USB-C cable, protective case, power adapter (30 W) | SIM card removal tool, USB-C cable, protective case, TurboPower 33W charger | |
|---|---|---|---|
| Compliant Standards | IP68, IP65, SGS Eye Care Display Certification, SGS Seamless Pro 120Hz Certification | IP52 | |
| Max Height of Shock Resistance | 2 m | - |
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