Samsung Galaxy A51 vs. Motorola RAZR 40 Ultra

Phone Comparison, Reviews and Tests

In depth comparison and review of Samsung Galaxy A51 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.

Phone Specifications Comparison

Samsung Galaxy A51 vs. Motorola RAZR 40 Ultra Comparison Chart
DESIGN AND DIMENSIONS Samsung Galaxy A51 Motorola RAZR 40 Ultra
Product Type Smartphone Smartphone
Manufacturer Model Number SM-A515F/DSN -
Form Factor Touch Folder (flip) - touch screen, dual screen
Height 158.5 mm 170.83 mm Motorola RAZR 40 Ultra has greater height than Samsung Galaxy A51.
Width 73.6 mm 73.95 mm Motorola RAZR 40 Ultra has greater width than Samsung Galaxy A51.
Depth 7.9 mm 6.99 mm Motorola RAZR 40 Ultra is narrower than Samsung Galaxy A51.
Weight 172 g 184.5 g Samsung Galaxy A51 is lighter than Samsung Galaxy A51.
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 Silver | Prism crush black | Haze crush silver | Prism crush blue | Prism crush 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 0.369 W/kg (head), 1.59 W/kg (body), 2.93 W/kg (limb) -
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 Samsung Galaxy A51 Motorola RAZR 40 Ultra
Display Type OLED display pOLED display
Display Technology Super AMOLED Foldable AMOLED (LTPO)
Foldable Display - Yes
Display Design - Inward folding
Screen Size (Display Size) 6.5" 6.9" Motorola RAZR 40 Ultra has larger screen size than Samsung Galaxy A51.
Screen Resolution (Display Resolution) 2400 x 1080 pixels 2640 x 1080 pixels Motorola RAZR 40 Ultra has better screen resolution than Samsung Galaxy A51.
Display Format Full HD+ Full HD+
Pixel Density 408 ppi 413 ppi Motorola RAZR 40 Ultra has better pixel density than Samsung Galaxy A51.
Aspect Ratio - 22:9
Max Brightness - 1400 cd/m²
Colour Depth 16.7 million colours 1.07 billion colours Motorola RAZR 40 Ultra has better colour depth than Samsung Galaxy A51.
HDR - Yes Motorola RAZR 40 Ultra has HDR.
HDR Technology - HDR10+
Display Refresh Rate - 165 Hz
Touch Sampling Rate - 360 Hz
Display Features Edge-to-Edge screen, Infinity O display Attentive display, Dark mode, Peak Display, 120% DCI-P3, secondary screen: 1100 nits max brightness
Display Protection (Screen Protector) - 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 Samsung Galaxy A51 Motorola RAZR 40 Ultra
Processor Type (CPU) Samsung Exynos 9611 Qualcomm Snapdragon 8+ Gen 1
Clock Speed 2.3 GHz -
Processor Core Qty 8-core -
64-bit Architecture Yes - Samsung Galaxy A51 has 64-bit architecture.
MEMORY Samsung Galaxy A51 Motorola RAZR 40 Ultra
RAM 4 GB LPDDR5 SDRAM - 8 GB Motorola RAZR 40 Ultra has more RAM than Samsung Galaxy A51.
Internal Memory Size (Storage Capacity) 128 GB 256 GB Motorola RAZR 40 Ultra has more internal memory than Samsung Galaxy A51.
User Memory 107 GB -
Supported Flash Memory Cards (Expandable Memory) microSDHC, microSDXC - up to 512 GB -
CAMERA Samsung Galaxy A51 Motorola RAZR 40 Ultra
MAIN CAMERA
Number of Main Cameras 4 2
Sensor Resolution 48 Megapixel 12 Megapixel Samsung Galaxy A51 has better camera resolution than Motorola RAZR 40 Ultra.
Lens Aperture F/2.0 F/1.5 Motorola RAZR 40 Ultra has better lens aperture than Samsung Galaxy A51.
Pixel Size - 1.4 μm
Optical Image Stabiliser (OIS) - Optical Image Stabiliser (OIS) Motorola RAZR 40 Ultra has optical stabilisation.
Focus Adjustment Automatic Automatic
Digital Zoom 8x -
Special Effects - HDR, Spot Colour
HDR Mode - HDR10+ video
Camera Modes Slow motion mode, Live Focus 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 LED flash Single LED flash
Video Resolutions 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) AR sticker, background blur, Scene Optimiser, Eye blink, Flaw detection, Stamp, Facial blur Smart composition, shot optimisation, Google Lens, horizon lock
SECOND CAMERA
Sensor Resolution (2nd Camera) 12 Megapixel 13 Megapixel Motorola RAZR 40 Ultra has better second camera resolution than Samsung Galaxy A51.
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) 123 degree(s) 108 degree(s) Samsung Galaxy A51 has larger second camera lens field of view than Motorola RAZR 40 Ultra.
Pixel Size (2nd Camera) - 1.12 μm
Camera Functions (2nd Camera) - Macro camera
THIRD CAMERA
Sensor Resolution (3rd Camera) 5 Megapixel -
Lens Aperture (3rd Camera) F/2.4 -
Camera Functions (3rd Camera) Macro camera -
FOURTH CAMERA
Sensor Resolution (4th Camera) 5 Megapixel -
Lens Type (4th Camera) Telephoto lens -
Lens Aperture (4th Camera) F/2.2 -
Camera Functions (4th Camera) Depth camera -
FRONT CAMERA
Number of Front Cameras 1 1
Sensor Resolution (Front) 32 Megapixel 32 Megapixel Both phones have the same front camera resolution.
Lens Aperture (Front) F/2.2 F/2.4 Samsung Galaxy A51 has better front lens aperture than Samsung Galaxy A51.
Pixel Size (Front) - 0.7 μm
Focus Adjustment Focus free -
Special Effects (Front) - HDR, photo booth, Spot Colour
Camera Modes (Front) - 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) - Quad Pixel technology for 1.4 µm, Selfie animation
BATTERY AND CHARGING Samsung Galaxy A51 Motorola RAZR 40 Ultra
Battery Capacity (Battery Size) 4000 mAh 3800 mAh Samsung Galaxy A51 has larger battery capacity than Motorola RAZR 40 Ultra.
Fast Charging Technology - TurboPower technology Motorola RAZR 40 Ultra has fast charging technology.
Wireless Charging - Yes Motorola RAZR 40 Ultra can be charged wirelessly.
Talk Time 1920 minutes -
Run Time Details Active online usage (LTE): up to 15 hrs
Active online usage (Wi-Fi): up to 16 hrs
Playback (video): up to 20 hrs
Playback (audio): up to 87 hrs
Talk (4G): up to 1920 min
-
Battery Technology Lithium Ion -
CELLULAR Samsung Galaxy A51 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 10 Android 13
User Interface One UI My UX
Intelligent Assistant Bixby Google Assistant
Navigation GPS, GLONASS, BeiDou, Galileo GPS, A-GPS, GLONASS, BeiDou, Galileo, LTEPP, SUPL
COMMUNICATIONS Samsung Galaxy A51 Motorola RAZR 40 Ultra
Data Transmission GPRS, EDGE, HSDPA, HSUPA, HSPA+, FDD-LTE, TDD-LTE 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 4, Band 5, Band 8 Band 1, Band 2, Band 4, Band 5, Band 8
3G UMTS Frequency 2100, 1900, 1700, 850, 900 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 13, Band 17, Band 20, Band 26, Band 28, Band 38, Band 40, Band 41, Band 66 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 1700 - 2110 AWS, FDD 850, FDD 2600, FDD 900, FDD 700a, FDD 700c, FDD 700b, FDD 800 DD, FDD 850+, FDD 700 APT, TDD 2600, TDD 2300, TDD 2500, FDD 1700 - 2110 AWS-3 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, ANT+ IEEE 802.11a/b/g/n/ac/ax, Wi-Fi 6E
Bluetooth Bluetooth 5.0 LE Bluetooth 5.3
Bluetooth Profiles HFP, HSP, OPP, PAN, A2DP, AVRCP, HID, SAP, PBAP, MAP, HOGP -
NFC Yes Yes Both phones have an NFC reader for mobile payments.
Messaging Services SMS, MMS -
MEDIA Samsung Galaxy A51 Motorola RAZR 40 Ultra
Supported Digital Audio Standards WAV, WMA, AAC, AMR, MP3, FLAC, XMF, OGG, MIDI, M4A, MXMF, OGA, 3GA, AWB, IMY, RTTTL, RTX, OTA, MID -
Supported Digital Video Standards MKV, FLV, AVI, WMV, ASF, 3GP, M4V, WebM, 3G2, MP4 -
Sound Enhancements - Dolby Atmos sound technology, Spatial audio, Qualcomm Snapdragon Sound
FEATURES Samsung Galaxy A51 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, gyro sensor, hall sensor, geomagnetic sensor Accelerometer, ambient light sensor, proximity sensor, hall sensor, light sensor, gyroscope, eCompass
Security Devices Fingerprint reader (under display) Face recognition, fingerprint reader (side)
Security Technology - Face Unlock
Additional Phone Features Fast Charging, Samsung KNOX, Bixby Vision, Game Booster, Bixby Routines Three microphones, Game mode, dual stereo speakers
OTHERS Samsung Galaxy A51 Motorola RAZR 40 Ultra
Included Accessories Power adapter Protective cover, power adapter, SIM card removal tool, USB-C cable
Compliant Standards - IP52
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