In depth comparison and review of ASUS ZenFone 4 (ZE554KL) and Motorola RAZR 40 Ultra. 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 4 (ZE554KL) | Motorola RAZR 40 Ultra |
|---|
| Product Type | Smartphone | Smartphone | |
|---|---|---|---|
| Manufacturer Model Number | ZE554KL | - | |
| Form Factor | Touch | Folder (flip) - touch screen, dual screen | |
| Height | 155.36 mm | 170.83 mm | Motorola RAZR 40 Ultra has greater height than ASUS ZenFone 4 (ZE554KL). |
| Width | 75.24 mm | 73.95 mm | ASUS ZenFone 4 (ZE554KL) has greater width than Motorola RAZR 40 Ultra. |
| Depth | 7.7 mm | 6.99 mm | Motorola RAZR 40 Ultra is narrower than ASUS ZenFone 4 (ZE554KL). |
| Weight | 165 g | 184.5 g | ASUS ZenFone 4 (ZE554KL) is lighter than ASUS ZenFone 4 (ZE554KL). |
| Dimensions Details | - | Unfolded - 73.95 mm x 6.99 mm x 170.83 mm Folded - 73.95 mm x 15.1 mm x 88.42 mm |
|
| Body Colour | Midnight black | Moonlight white | Glacier blue | Infinite black | Viva magenta | |
| Body Material | - | Vegan leather, 7000 Series aluminium, Corning Gorilla Glass Victus | |
| Protection | - | Splashproof | |
| Waterproof (Water-resistant) | - | - | Motorola RAZR 40 Ultra is waterproof. |
| IP rating | - | IP52 | |
| SAR Value | 1.48 W/kg (body), 1.42 W/kg (head) | - | |
| Integrated Components | FM radio | - | |
| Connector Type | Headset jack - mini-phone 3.5mm USB Type-C - 24 pin USB-C |
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 | |
| SIM Card Configuration Details | Nano SIM + nano SIM/microSD | - |
| DISPLAY | ASUS ZenFone 4 (ZE554KL) | Motorola RAZR 40 Ultra |
|---|
| Display Type | LCD display | pOLED display | |
|---|---|---|---|
| Display Technology | Super IPS+ | Foldable AMOLED (LTPO) | |
| Foldable Display | - | Yes | |
| Display Design | - | Inward folding | |
| Screen Size (Display Size) | 5.5" | 6.9" | Motorola RAZR 40 Ultra has larger screen size than ASUS ZenFone 4 (ZE554KL). |
| Screen Resolution (Display Resolution) | 1920 x 1080 pixels | 2640 x 1080 pixels | Motorola RAZR 40 Ultra has better screen resolution than ASUS ZenFone 4 (ZE554KL). |
| Display Format | Full HD | Full HD+ | |
| Pixel Density | - | 413 ppi | |
| Aspect Ratio | - | 22:9 | |
| Max Brightness | 600 cd/m² | 1400 cd/m² | Motorola RAZR 40 Ultra has better display brightness than ASUS ZenFone 4 (ZE554KL). |
| Colour Depth | - | 1.07 billion colours | |
| HDR | - | Yes | Motorola RAZR 40 Ultra has HDR. |
| HDR Technology | - | HDR10+ | |
| Display Enhancement Technology | Bluelight Filter for Eye Care, Splendid technology | - | |
| Display Refresh Rate | - | 165 Hz | |
| Touch Sampling Rate | - | 360 Hz | |
| Display Features | 2.5D Glass | Attentive display, Dark mode, Peak Display, 120% DCI-P3, secondary screen: 1100 nits max brightness | |
| Display Protection (Screen Protector) | Corning Gorilla Glass (scratch resistant glass), smudge-resistant oleophobic coating | Corning Gorilla Glass Victus (scratch resistant glass) |
| SECOND DISPLAY |
|---|
| Second Display Type | - | pOLED display - colour | |
|---|---|---|---|
| Second Display Screen Size | - | 3.6" | |
| Second Display Resolution | - | 1066 x 1056 pixels | |
| Second Display Colour Depth | - | 1.07 billion colours |
| PROCESSOR | ASUS ZenFone 4 (ZE554KL) | Motorola RAZR 40 Ultra |
|---|
| Processor Type (CPU) | Qualcomm Snapdragon 630 | Qualcomm Snapdragon 8+ Gen 1 | |
|---|---|---|---|
| Clock Speed | 2.2 GHz | - | |
| Processor Core Qty | 8-core | - | |
| 64-bit Architecture | Yes | - | ASUS ZenFone 4 (ZE554KL) has 64-bit architecture. |
| Graphics System (GPU) | Qualcomm ADRENO 508 | - |
| MEMORY | ASUS ZenFone 4 (ZE554KL) | Motorola RAZR 40 Ultra |
|---|
| RAM | LPDDR4X SDRAM - 4 GB | LPDDR5 SDRAM - 8 GB | Motorola RAZR 40 Ultra has more RAM than ASUS ZenFone 4 (ZE554KL). |
|---|---|---|---|
| Internal Memory Size (Storage Capacity) | 64 GB | 256 GB | Motorola RAZR 40 Ultra has more internal memory than ASUS ZenFone 4 (ZE554KL). |
| Supported Flash Memory Cards (Expandable Memory) | microSDHC, microSDXC - up to 2 TB | - |
| CAMERA | ASUS ZenFone 4 (ZE554KL) | Motorola RAZR 40 Ultra |
|---|
| MAIN CAMERA |
|---|
| Number of Main Cameras | 2 | 2 | |
|---|---|---|---|
| Sensor Resolution | 12 Megapixel | 12 Megapixel | Both phones have the same camera resolution. |
| Sensor Size | 1/2.55" | - | |
| Sensor Name | Sony Exmor RS IMX362 sensor | - | |
| Lens Aperture | F/1.8 | F/1.5 | Motorola RAZR 40 Ultra has better lens aperture than ASUS ZenFone 4 (ZE554KL). |
| Lens Construction | 6-element | - | |
| Pixel Size | - | 1.4 μm | |
| Optical Image Stabiliser (OIS) | 4 Stop OIS (Optical Image Stabilisation) | Optical Image Stabiliser (OIS) | Both phones have optical image stabilization. |
| Focus Adjustment | Automatic | Automatic | |
| Special Effects | HDR | HDR, Spot Colour | |
| HDR Mode | - | HDR10+ video | |
| Camera Modes | Panorama, Time-lapse mode, Pro mode, Beauty mode, Auto mode, super resolution mode, GIF animation function, portrait mode | Panorama, Pro mode, BurstShot, super resolution mode, Super slow motion, Active photos, Portrait, Night Vision, Portrait video, Hyperlapse video, Live filter, Capture Dual, Auto night vision | |
| Face Recognition (Face ID) | - | Auto smile capture | Motorola RAZR 40 Ultra has face detection. |
| Light Source | Dual LED flash | Single 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, Slo-mo video 1920 x 1080 (1080p) at 120 fps, Slo-mo video 1280 x 720 (720p) at 240 fps, 3840 x 2160 (4K) at 30 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) | 3-axis electronic image stabilisation, RAW image capture, Subject-Tracking Auto-Focus, PixelMaster 4.0 camera, 4-axis optical image stabilisation, 9 filters, Instant cameras switching, Dual Pixel Phase Detect Auto-Focus (PDAF) | Smart composition, shot optimisation, Google Lens, horizon lock |
| SECOND CAMERA |
|---|
| Sensor Resolution (2nd Camera) | 8 Megapixel | 13 Megapixel | Motorola RAZR 40 Ultra has better second camera resolution than ASUS ZenFone 4 (ZE554KL). |
|---|---|---|---|
| Lens Type (2nd Camera) | Wide-angle lens | Ultra wide-angle lens | |
| Lens Aperture (2nd Camera) | - | F/2.2 | |
| Field of View (2nd Camera) | - | 108 degree(s) | |
| Pixel Size (2nd Camera) | - | 1.12 μm | |
| Camera Functions (2nd Camera) | - | Macro camera |
| FRONT CAMERA |
|---|
| Number of Front Cameras | 1 | 1 | |
|---|---|---|---|
| Sensor Resolution (Front) | 8 Megapixel | 32 Megapixel | Motorola RAZR 40 Ultra has better front camera resolution than ASUS ZenFone 4 (ZE554KL). |
| Lens Aperture (Front) | F/2.0 | F/2.4 | ASUS ZenFone 4 (ZE554KL) has better front lens aperture than ASUS ZenFone 4 (ZE554KL). |
| Pixel Size (Front) | - | 0.7 μm | |
| Special Effects (Front) | Collage | HDR, photo booth, Spot Colour | |
| Camera Modes (Front) | Beauty mode, Auto mode, selfie panorama, GIF animation function, portrait mode, Smart beautification, Livestream beautification | BurstShot, Face Beauty, Timelapse video, 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 Ultra has face detection. |
| 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) | PixelMaster camera, ASUS SelfieMaster technology, 9 filters | Quad Pixel technology for 1.4 µm, Selfie animation |
| BATTERY AND CHARGING | ASUS ZenFone 4 (ZE554KL) | Motorola RAZR 40 Ultra |
|---|
| Battery Capacity (Battery Size) | 3300 mAh | 3800 mAh | Motorola RAZR 40 Ultra has larger battery capacity than ASUS ZenFone 4 (ZE554KL). |
|---|---|---|---|
| Fast Charging Technology | ASUS Boost Master | TurboPower technology | Both phones have fast charging technology. |
| Wireless Charging | - | Yes | Motorola RAZR 40 Ultra can be charged wirelessly. |
| Standby Time | 552 hours | - | |
| Talk Time | 1800 minutes | - | |
| Run Time Details | Standby (4G): up to 552 hrs Talk (3G): up to 1800 min Playback (video): up to 16 hrs Continuous browsing (Wi-Fi): up to 18 hrs |
- | |
| Battery Technology | Lithium polymer | - |
| CELLULAR | ASUS ZenFone 4 (ZE554KL) | Motorola RAZR 40 Ultra |
|---|
| Technology | WCDMA (UMTS) / GSM | WCDMA (UMTS) / GSM | |
|---|---|---|---|
| Mobile Broadband Generation | 4G | 5G | Motorola RAZR 40 Ultra has more advanced generation mobile network. |
| Operating System | Android 7.0 Nougat | Android 13 | |
| User Interface | ASUS ZenUI 4.0 | My UX | |
| Intelligent Assistant | - | Google Assistant | |
| Navigation | GPS, A-GPS, GLONASS, BeiDou, Galileo | GPS, A-GPS, GLONASS, BeiDou, Galileo, LTEPP, SUPL |
| COMMUNICATIONS | ASUS ZenFone 4 (ZE554KL) | Motorola RAZR 40 Ultra |
|---|
| Data Transmission | GPRS, EDGE, HSDPA, HSUPA, HSPA+, FDD-LTE, TDD-LTE, DC-HSPA+ | EDGE, HSPA+, LTE, 5G NR FR1 | |
|---|---|---|---|
| 2G Band | 850 GSM, 900 GSM, 1800 GSM, 1900 GSM | 850 GSM, 900 GSM, 1800 GSM, 1900 GSM | |
| 3G UMTS Band | Band 1, Band 2, Band 3, Band 5, Band 6, Band 8, Band 19 | Band 1, Band 2, Band 4, Band 5, Band 8 | |
| 3G UMTS Frequency | 2100, 1900, 1800, 850, 800, 900, 800 | 2100, 1900, 1700, 850, 900 | |
| 4G LTE Band | Band 1, Band 2, Band 3, Band 5, Band 7, Band 8, Band 18, Band 19, Band 20, Band 26, Band 28, Band 32, Band 38, Band 39, Band 40, Band 41 | 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 34, 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 850, FDD 2600, FDD 900, FDD 800 lower, FDD 800 upper, FDD 800 DD, FDD 850+, FDD 700 APT, FDD 1500 L, TDD 2600, TDD 1900, TDD 2300, TDD 2500 | 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 2000, TDD 2600, TDD 1900, TDD 2300, TDD 2500, TDD 3500, TDD 3700, TDD 3600, FDD 1700 - 2110 AWS-3 | |
| 5G NR Band | - | N1, n3, n5, n7, n8, n20, n28, n38, n41, n66, n77, n78, n79 | |
| 5G NR Frequency | - | FDD 2100, 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 TD 4500 | |
| Wireless Interface | IEEE 802.11a/b/g/n/ac | IEEE 802.11a/b/g/n/ac/ax, Wi-Fi 6E | |
| Bluetooth | Bluetooth 5.0 | Bluetooth 5.3 | |
| NFC | Yes | Yes | Both phones have an NFC reader for mobile payments. |
| Messaging Services | SMS, MMS | - |
| MEDIA | ASUS ZenFone 4 (ZE554KL) | Motorola RAZR 40 Ultra |
|---|
| Sound Enhancements | DTS-HD Premium Sound, Hi-Res audio, DTS Headphone:X | Dolby Atmos sound technology, Spatial audio, Qualcomm Snapdragon Sound |
|---|
| FEATURES | ASUS ZenFone 4 (ZE554KL) | Motorola RAZR 40 Ultra |
|---|
| Phone Functions | Speakerphone, voice control, call timer, conference call, flight mode, voice dialing, vibrating alert | - | |
|---|---|---|---|
| Sensors | Accelerometer, ambient light sensor, proximity sensor, digital compass, gyro sensor, hall sensor, colour correction sensor | Accelerometer, ambient light sensor, proximity sensor, hall sensor, light sensor, gyroscope, eCompass | |
| Security Devices | - | Face recognition, fingerprint reader (side) | |
| Security Technology | - | Face Unlock | |
| Additional Phone Features | Wi-Fi Miracast, Dual noise reduction microphones, Google Drive Storage (100 GB) (free for 2 years), NXP Smart AMP technology, ASUS Noise Reduction technology, Nano Molding Technology (NMT) | Three microphones, Game mode, dual stereo speakers |
| OTHERS | ASUS ZenFone 4 (ZE554KL) | Motorola RAZR 40 Ultra |
|---|
| Included Accessories | Power adapter, SIM card removal tool, ASUS ZenEar with Mic, USB-C cable | Protective cover, power adapter, SIM card removal tool, USB-C cable | |
|---|---|---|---|
| Compliant Standards | - | IP52 |
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