ASUS ZenFone Zoom (ZX551ML) vs. Motorola RAZR 40

Phone Comparison, Reviews and Tests

In depth comparison and review of ASUS ZenFone Zoom (ZX551ML) 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.

Phone Specifications Comparison

ASUS ZenFone Zoom (ZX551ML) vs. Motorola RAZR 40 Comparison Chart
DESIGN AND DIMENSIONS ASUS ZenFone Zoom (ZX551ML) Motorola RAZR 40
Product Type Smartphone Smartphone
Manufacturer Model Number ZX551ML -
Form Factor Touch Folder (flip) - touch screen, dual screen
Height 158.9 mm 170.82 mm Motorola RAZR 40 has greater height than ASUS ZenFone Zoom (ZX551ML).
Width 78.8 mm 73.95 mm ASUS ZenFone Zoom (ZX551ML) has greater width than Motorola RAZR 40.
Depth 12 mm 7.35 mm Motorola RAZR 40 is narrower than ASUS ZenFone Zoom (ZX551ML).
Weight 185 g 188.6 g ASUS ZenFone Zoom (ZX551ML) is lighter than ASUS ZenFone Zoom (ZX551ML).
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 Ceramic white | Pure black Vanilla cream | Sage green | Summer lilac
Body Material - Vegan leather, 7000 Series aluminium, Corning Gorilla Glass Victus
Protection - Splashproof
Waterproof (Water-resistant) - - Motorola RAZR 40 is waterproof.
IP rating - IP52
SAR Value 0.432 W/kg (body), 0.343 W/kg (head) -
Connector Type Headset jack - mini-phone 3.5mm
Micro-USB - 5 pin Micro-USB Type B
USB Type-C - 24 pin USB-C
SIM Card Type (Size) Micro SIM Nano SIM, Electronic SIM card (e-SIM)
SIM Card Qty - Dual-SIM
DISPLAY ASUS ZenFone Zoom (ZX551ML) Motorola RAZR 40
Display Type LCD display pOLED display
Display Technology IPS AMOLED (LTPO)
Foldable Display - Yes
Display Design - Inward folding
Screen Size (Display Size) 5.5" 6.9" Motorola RAZR 40 has larger screen size than ASUS ZenFone Zoom (ZX551ML).
Screen Resolution (Display Resolution) 1920 x 1080 pixels 2640 x 1080 pixels Motorola RAZR 40 has better screen resolution than ASUS ZenFone Zoom (ZX551ML).
Display Format Full HD Full HD+
Pixel Density 401 ppi 413 ppi Motorola RAZR 40 has better pixel density than ASUS ZenFone Zoom (ZX551ML).
Aspect Ratio - 22:9
Max Brightness - 1400 cd/m²
Colour Depth 16.7 million colours 1.07 billion colours Motorola RAZR 40 has better colour depth than ASUS ZenFone Zoom (ZX551ML).
HDR - Yes Motorola RAZR 40 has HDR.
HDR Technology - HDR10+
Display Refresh Rate - 144 Hz
Touch Sampling Rate - 360 Hz
Display Features - DCI-P3 Wide colour gamut, secondary screen: 282 PPI
Display Protection (Screen Protector) Corning Gorilla Glass 4 (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 Zoom (ZX551ML) Motorola RAZR 40
Processor Type (CPU) Intel Atom Qualcomm Snapdragon 7 Gen 1
Processor Number Z3590 -
Clock Speed 2.5 GHz 2.4 GHz ASUS ZenFone Zoom (ZX551ML) has higher clock speed than Motorola RAZR 40.
Processor Core Qty Quad-core -
Graphics System (GPU) PowerVR G6430 Qualcomm ADRENO 644
MEMORY ASUS ZenFone Zoom (ZX551ML) Motorola RAZR 40
RAM 4 GB LPDDR4X SDRAM - 8 GB Motorola RAZR 40 has more RAM than ASUS ZenFone Zoom (ZX551ML).
Internal Memory Size (Storage Capacity) 32 GB 256 GB Motorola RAZR 40 has more internal memory than ASUS ZenFone Zoom (ZX551ML).
Memory Interface - UFS 2.2
Supported Flash Memory Cards (Expandable Memory) microSDHC, microSDXC - up to 128 GB -
CAMERA ASUS ZenFone Zoom (ZX551ML) Motorola RAZR 40
MAIN CAMERA
Number of Main Cameras 1 2
Sensor Resolution 13 Megapixel 64 Megapixel Motorola RAZR 40 has better camera resolution than ASUS ZenFone Zoom (ZX551ML).
Lens Aperture F/2.7-4.8 F/1.7 Motorola RAZR 40 has better lens aperture than ASUS ZenFone Zoom (ZX551ML).
Pixel Size - 0.7 μm
Optical Image Stabiliser (OIS) Optical Image Stabiliser (OIS) Optical Image Stabiliser (OIS) Both phones have optical image stabilization.
Focus Adjustment Automatic Automatic
Laser Auto Focus Yes Yes
Digital Zoom 3x -
Self-Timer Delay - Yes
Special Effects - HDR, Spot Colour
HDR Mode Auto HDR mode -
Camera Modes Panorama 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) Face detection Auto smile capture Both phones have face detection.
Light Source Dual LED flash LED flash
Video Resolutions 1920 x 1080 (1080p) 1920 x 1080 (1080p) at 30 fps, 1920 x 1080 (1080p) at 60 fps, 3840 x 2160 (4K) at 30 fps
Camera Features (Functions) - 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) - 13 Megapixel
Lens Type (2nd Camera) - Ultra wide-angle lens
Lens Aperture (2nd Camera) - F/2.2
Field of View (2nd Camera) - 120 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) 5 Megapixel 32 Megapixel Motorola RAZR 40 has better front camera resolution than ASUS ZenFone Zoom (ZX551ML).
Lens Aperture (Front) F/2.0 F/2.4 ASUS ZenFone Zoom (ZX551ML) has better front lens aperture than ASUS ZenFone Zoom (ZX551ML).
Pixel Size (Front) - 0.7 μm
Focus Adjustment - Fixed focus
Special Effects (Front) - HDR, photo booth, Spot Colour
Camera Modes (Front) - 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) - 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 Zoom (ZX551ML) Motorola RAZR 40
Battery Capacity (Battery Size) 3000 mAh 4200 mAh Motorola RAZR 40 has larger battery capacity than ASUS ZenFone Zoom (ZX551ML).
Fast Charging Technology - TurboPower technology Motorola RAZR 40 has fast charging technology.
Wireless Charging - Yes Motorola RAZR 40 can be charged wirelessly.
Battery Technology Lithium polymer -
CELLULAR ASUS ZenFone Zoom (ZX551ML) Motorola RAZR 40
Technology WCDMA (UMTS) / GSM WCDMA (UMTS) / GSM
Mobile Broadband Generation 4G 5G Motorola RAZR 40 has more advanced generation mobile network.
Operating System Android 5.0 (Lollipop) Android 13
User Interface ASUS ZenUI 2.0 My UX
Intelligent Assistant - Google Assistant
Navigation A-GPS, GLONASS, BeiDou GPS, A-GPS, GLONASS, BeiDou, Galileo, LTEPP, SUPL
COMMUNICATIONS ASUS ZenFone Zoom (ZX551ML) Motorola RAZR 40
Data Transmission GPRS, EDGE, HSDPA, HSUPA, HSPA+, LTE EDGE, HSPA+, LTE, 5G NR FR1
2G Band 850 GSM, 1800 GSM, 1900 GSM -
3G UMTS Band - Band 1, Band 2, Band 4, Band 5, Band 8
3G UMTS Frequency - 2100, 1900, 1700, 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 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 850, FDD 2600, FDD 900, FDD 1800, FDD 800 lower, FDD 800 upper, FDD 700 APT 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, 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 2500, FDD AWS-3, TDD TD 3700, TDD TD 3500, TDD 2300, FDD 850
Wireless Interface IEEE 802.11a/b/g/n/ac IEEE 802.11a/b/g/n/ac/ax
Bluetooth Bluetooth 4.0 Bluetooth 5.3
Bluetooth Profiles A2DP -
NFC Yes Yes Both phones have an NFC reader for mobile payments.
Messaging Services SMS, MMS -
MEDIA ASUS ZenFone Zoom (ZX551ML) Motorola RAZR 40
Supported Digital Audio Standards - Dolby Atmos
Sound Enhancements - Surround sound, dual stereo speakers tuned by Dolby
FEATURES ASUS ZenFone Zoom (ZX551ML) Motorola RAZR 40
Phone Functions Speakerphone, call timer, conference call, vibrating alert -
Sensors Accelerometer, proximity sensor, digital compass, gyro sensor Accelerometer, ambient light sensor, proximity sensor, digital compass, barometer, hall sensor, ultrasonic sensor, gyroscope
Security Devices - Face recognition, fingerprint reader (side)
Security Technology - Face Unlock
Additional Phone Features Multitasking Three microphones, dual stereo speakers
OTHERS ASUS ZenFone Zoom (ZX551ML) Motorola RAZR 40
Included Accessories Power adapter SIM card removal tool, USB-C cable, protective case, TurboPower 33W charger
Compliant Standards - IP52
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