Motorola Moto G51 5G vs Motorola Razr 40 Ultra - Detailed Phone Comparison

Detailed Comparison

Specification

General

Launch Date December 16, 2021 June 5, 2023
Release Year 2021 2023

Physical

Volume 118.69 cm³ 88.47 cm³
Screen Size to Weight Ratio 3.27 "/g 3.74 "/g
Weight 208 g 184.5 g
Height 170.5 mm 170.8 mm
Width 76.5 mm 74 mm
Thickness 9.1 mm 7 mm
Foldable Design No Yes
Available Colors
  • Indigo Blue
  • Bright Silver
  • Aqua Blue
  • Glacier Blue
  • Viva Magenta
  • Infinite Black
  • Peach Fuzz

Display

Screen Size 6.8 " 6.9 "
Resolution 1080 x 2400 1080 x 2640
Aspect Ratio 20:9 22:9
Screen-to-Body Ratio 85.6 % 85.2 %
Pixel Density 387 PPI 413 PPI
Refresh Rate 120 Hz 165 Hz
Typical Brightness N/A N/A
HBM Brightness N/A N/A
Peak Brightness N/A 1400 nits

Hardware

Battery Capacity per Screen Area 108.13 mAh/in² 79.82 mAh/in²
Battery Density 42.13 mAh/cm³ 42.95 mAh/cm³
Battery Capacity 5000 mAh 3800 mAh
NFC Support Yes Yes
Chipset Qualcomm SM4350-AC Snapdragon 480+ 5G (8 nm) Qualcomm SM8475 Snapdragon 8+ Gen 1 (4 nm)
CPU Octa-core (2x2.2 GHz Kryo 460 & 6x1.8 GHz Kryo 460) Octa-core (1x3.19 GHz Cortex-X2 & 3x2.75 GHz Cortex-A710 & 4x1.80 GHz Cortex-A510)
GPU Adreno 619 Adreno 730

Connectivity

USB Version 2.0 2.0
OTG Support
DisplayPort
DisplayPort Version N/A N/A
USB Features USB Type-C 2.0 USB Type-C 2.0

Software

Operating System Android Android
Initial OS Version 11 13
Maximum OS Version 12 16

Comparison Summary

Alright, let's dive into a detailed comparison of the Motorola Moto G51 5G and the Motorola Razr 40 Ultra. We’ve got a classic budget contender squaring off against a cutting-edge foldable, so this should be interesting. I’m going to break down the specs and what they actually mean for you, the user.

1. Specifications Breakdown

Here’s a deep dive into the specs, with a focus on real-world impact:

FeatureMotorola Moto G51 5GMotorola Razr 40 UltraReal-World Implications
DESIGN
Launch Date2021-12-162023-06-05Razr 40 Ultra is much newer, with newer tech
FoldableStandardFoldableRazr 40 Ultra offers a unique, compact design
Dimensions (mm)170.5 x 76.5 x 9.1170.8 x 74 x 7G51 is wider, thicker; Razr 40 Ultra is slimmer but the same height
Weight (g)208184.5Razr 40 Ultra is notably lighter, better for one-handed use
DISPLAY
Size (inches)6.86.9Razr 40 Ultra is slightly larger.
Resolution1080 x 24001080 x 2640Razr 40 Ultra has slightly sharper, more detailed display.
PPI387413Razr 40 Ultra has slightly better clarity
TechnologyIPS LCDG51 uses IPS LCD; Razr's is currently unknown
Refresh Rate (Hz)120165Razr 40 Ultra offers noticeably smoother scrolling and gaming
Brightness (nits)01400Razr 40 Ultra is dramatically brighter, making it ideal for outdoor use
PERFORMANCE
ChipsetSnapdragon 480+ 5GSnapdragon 8+ Gen 1Razr 40 Ultra's chipset is much faster, with better performance for all tasks, including gaming and multitasking
Antutu Score381,0001,238,000Razr 40 Ultra is significantly faster, more responsive
GPUAdreno 619Adreno 730Razr 40 Ultra’s graphics are far more powerful, better for gaming
CAMERA
Standard Camera50MP f/1.8, 1/2.76"12MP f/1.5Moto G51 has higher resolution, Razr has a wider aperture
Selfie Camera13MP f/2.232MP f/2.45Razr 40 Ultra has higher resolution; G51 has a wider aperture
Wide Angle Lens8MPNoneG51 has dedicated wide lens for expansive shots.
Macro Lens2MPNoneG51 has a macro lens for close-up shots
Wide + Macro LensNone13MP f/2.2Razr 40 Ultra has a combo wide+macro lens
Video RecordingUp to 1080p/240fpsUp to 4K/60fpsRazr 40 Ultra captures much higher quality, smoother video.
StabilisationNoYesRazr 40 Ultra has image and video stabilization
Camera FeaturesVarietyAdvancedRazr 40 Ultra features include OIS, Night vision, time-lapse
BATTERY LIFE
Capacity (mAh)50003800G51 has a significantly larger battery, may have longer life
Charging10W30WRazr 40 Ultra charges much faster
Battery FeaturesNon-removableReverse, WirelessRazr 40 Ultra can wirelessly charge, share charge with others
SOFTWARE
OSAndroid 11 (max 12)Android 13 (max 16)Razr 40 Ultra offers a more modern OS with future updates
CONNECTIVITY
Wi-Fi Versions802.11acWi-Fi 6ERazr 40 Ultra supports faster, newer Wi-Fi standards
Bluetooth5.15.3Razr 40 Ultra has a more modern Bluetooth version.
SIM SupportDual Nano SIMDual SIM + eSIMRazr 40 Ultra provides an eSIM option.
STORAGE
Internal Storage64/128 GB256/512 GBRazr 40 Ultra offers significantly more internal storage
RAM4/8 GB8/12 GBRazr 40 Ultra has more RAM, enabling smoother multitasking
Expandable StorageNoNoNeither supports extra storage
AUDIO
Audio QualityDolby AtmosDolby Atmos, StereoRazr 40 Ultra offers a more immersive audio experience
Microphones23Razr 40 Ultra has better audio capture
SECURITY
Security FeaturesSide FingerprintSide FingerprintBoth have side-mounted fingerprint scanners.
BUILD QUALITY
Screen ProtectionUnknownCorning Gorilla VictusRazr 40 Ultra has better screen durability
SENSORS
SensorsFingerprint, Proximity, Accelerometer, GyroscopeFingerprint, Proximity, Accelerometer, Compass, GyroscopeRazr 40 Ultra has a compass

2. Key Insights

Motorola Moto G51 5G: The Budget Performer

  • Strengths: The Moto G51 5G shines in areas like battery life, thanks to its large 5000mAh battery. It also features a versatile triple-camera setup including a dedicated wide angle and macro lens, which the Razr doesn't. It provides decent processing power for everyday tasks and has a 120Hz display, offering smooth visuals. All of this comes at a budget-friendly price point.
  • Competitive Advantages: Its main edge is offering a comprehensive set of features, including a large battery, versatile camera array and a smooth display, for less money than the other contender.
  • Trade-offs: It falls behind in performance, camera quality, and video capabilities compared to higher-end devices. The screen brightness isn't competitive and its storage options are limited.

Motorola Razr 40 Ultra: The Premium Foldable

  • Strengths: The Razr 40 Ultra is a marvel of engineering, boasting a foldable design with a smooth 165Hz display, an impressive Snapdragon 8+ Gen 1 processor, far more storage options and exceptional brightness. Its camera, while lower in megapixel count than the G51, provides higher quality results and high quality video recording. The Razr 40 Ultra is all about premium features, including a modern version of Android with future updates.
  • Competitive Advantages: Its main advantage is its foldable form factor, coupled with top-tier performance, display quality, and charging speed. It offers a unique user experience and is a statement device.
  • Trade-offs: The Razr has a higher price point, a smaller battery, and lacks the dedicated wide-angle and macro cameras of the Moto G51 5G. It's a premium device with a price tag to match.

3. User Profiles and Recommendations

Motorola Moto G51 5G:

  • Best for: Budget-conscious users, students, those who prioritize battery life, and users who want a versatile camera system on a budget.
  • Use Cases: Everyday browsing, social media, photography, and casual gaming. The G51 is great for anyone who wants a large screen and a long-lasting battery without breaking the bank.
  • Price-to-Value: Excellent value for the price point, offering a lot of features at a budget price.

Motorola Razr 40 Ultra:

  • Best for: Tech enthusiasts, early adopters, power users, those who value premium design and performance, and users who want a cutting-edge smartphone experience.
  • Use Cases: High-end gaming, multimedia consumption, multitasking, professional photography and videography, and making a statement. The Razr is perfect for someone who desires a premium, foldable phone with top-tier performance and a unique design.
  • Price-to-Value: Offers high-end specs and build quality, but it comes at a premium. The value proposition is tied to its high-end and unique foldable experience.

4. Buying Decision Framework

Here are three questions to guide your decision:

  1. What is your budget?

    • The Moto G51 5G is a budget-friendly option, while the Razr 40 Ultra is a high-end device with a significantly higher price tag.
  2. What are your priorities?

    • If battery life and versatile cameras are a must and you are budget conscious, the G51 5G is the better choice.
    • If you prioritize top-tier performance, a premium foldable design, and an excellent screen, the Razr 40 Ultra is the better fit.
  3. How do you primarily use your phone?

    • For everyday use and casual photography, the G51 5G is sufficient.
    • For advanced gaming, video recording, and professional use, the Razr 40 Ultra is the clear winner.

Scenario-Based Recommendations

  • Scenario 1: "The Daily Driver": You need a reliable phone for everyday use, including browsing, social media, and casual photography.

    • Recommendation: The Moto G51 5G provides excellent value with its large battery, a solid camera setup, and a smooth display.
  • Scenario 2: "The Power User": You are a heavy user, you play games, edit photos and videos, and value performance above all.

    • Recommendation: The Motorola Razr 40 Ultra offers a more powerful processor, high refresh rate screen, premium design, higher quality camera, and advanced video recording.
  • Scenario 3: "The Tech Enthusiast": You want the newest tech, appreciate unique designs, and love to show off cutting-edge features.

    • Recommendation: The Motorola Razr 40 Ultra is the go-to option, offering a premium foldable experience and top-of-the-line features.

My Choice

If I were choosing, I would go with the Motorola Razr 40 Ultra, for a couple of reasons. Firstly, I value innovative technology, and the foldable form factor is a very appealing feature that I want to try and use. Secondly, while the Razr's battery is smaller, its fast charging and overall performance far outweigh the benefits of the Moto G51. It is more of a well-rounded machine, that offers the latest features, and excellent daily performance. As a tech journalist, experiencing the forefront of mobile technology is paramount, so the Razr is the clear choice for me. It comes down to user needs, but my needs lean towards the performance and unique technology, even with the extra cost.

Alex Griffin
Alex Griffin

Technology analyst specializing in mobile devices and consumer electronics.

Core Expertise

  • Mobile technology analysis
  • Consumer electronics evaluation
  • Technical specification interpretation
  • User experience insights

Professional Mission Empowering readers to make informed technology decisions by transforming intricate specifications into understandable, practical guidance.

Demystifying technology, one device at a time.