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

Detailed Comparison

Specification
Motorola Razr 40
Motorola Razr 40
Motorola

General

Launch Date December 16, 2021 June 21, 2023
Release Year 2021 2023

Physical

Volume 118.69 cm³ 93.53 cm³
Screen Size to Weight Ratio 3.27 "/g 3.66 "/g
Weight 208 g 188.6 g
Height 170.5 mm 170.8 mm
Width 76.5 mm 74 mm
Thickness 9.1 mm 7.4 mm
Foldable Design No Yes
Available Colors
  • Indigo Blue
  • Bright Silver
  • Aqua Blue
  • Sage Green
  • Vanilla Cream
  • Summer Lilac
  • Grape Compote
  • Cherry Blossom

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 144 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 88.22 mAh/in²
Battery Density 42.13 mAh/cm³ 44.91 mAh/cm³
Battery Capacity 5000 mAh 4200 mAh
NFC Support Yes Yes
Chipset Qualcomm SM4350-AC Snapdragon 480+ 5G (8 nm) Qualcomm SM7450-AB Snapdragon 7 Gen 1 (4 nm)
CPU Octa-core (2x2.2 GHz Kryo 460 & 6x1.8 GHz Kryo 460) Octa-core (1x2.4 GHz Cortex-A710 & 3x2.36 GHz Cortex-A710 & 4x1.8 GHz Cortex-A510)
GPU Adreno 619 Adreno 644

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 break down the Motorola Moto G51 5G and the Razr 40. This isn't just about specs; it's about how these phones fit into your life. Buckle up; it’s going to be a deep dive.

1. Specifications Breakdown

First, let's get granular with a side-by-side comparison, focusing on what these specifications mean for everyday use:

FeatureMotorola Moto G51 5GMotorola Razr 40Real-World Implications
Design
Launch Date2021-12-162023-06-21Razr 40 is significantly newer, likely with more recent software and hardware advancements.
Form FactorStandardFoldableRazr 40 offers a unique, compact design when folded, while the G51 is a traditional slab phone.
Dimensions (mm)170.5 × 76.5 × 9.1170.8 × 74 × 7.4Razr 40 is slimmer and slightly narrower, making it more pocketable when folded.
Weight208g188.6gRazr 40 is lighter, making it more comfortable to hold for extended periods.
Display
Size6.8"6.9"Razr 40 has a slightly larger display, offering more screen real estate for content consumption.
Resolution1080x24001080x2640Razr 40 has a sharper image thanks to its slightly higher resolution.
Pixel Density (PPI)387413Razr 40's display will have more clarity and detail, slightly better than the G51 5G.
TechnologyIPS LCDNot SpecifiedG51 5G uses IPS LCD, and while not stated Razr 40 has an OLED panel offering superior contrast.
Refresh Rate120Hz144HzRazr 40 provides a smoother scrolling and gaming experience with its higher refresh rate.
Brightness (nits)01400Razr 40 offers significantly better outdoor visibility, especially in bright sunlight.
Performance
ChipsetSnapdragon 480+ 5G (8 nm)Snapdragon 7 Gen 1 (4 nm)Razr 40 has a much more powerful processor, leading to faster apps and better overall performance.
AnTuTu Score381,000699,600Razr 40 will feel significantly snappier in day-to-day tasks and heavy usage.
GPUAdreno 619Adreno 644Razr 40 will provide superior graphics processing, better for gaming and demanding applications.
Battery Life
Capacity5000mAh4200mAhMoto G51 5G will likely have a longer battery life between charges, owing to the bigger battery.
Charging10W Fast Charging33W Fast ChargingRazr 40 will charge significantly faster, minimizing downtime.
Battery FeaturesNon-removableReverse + Wireless, Non-removableRazr 40 offers the added convenience of reverse and wireless charging capabilities.
Camera
Standard Lens50MP f/1.8 (1/2.76", 0.64µm)64MP f/1.8 (Not Specified)Razr 40 provides slightly higher detail with a higher resolution sensor.
Selfie Lens13MP f/2.2 (1.12µm)32MP f/2.45 (Not Specified)Razr 40 will produce higher resolution selfies.
Wide Angle Lens8MP (1.12µm)Not AvailableMoto G51 has a dedicated wide-angle lens for landscape photography.
Macro Lens2MP (1.75µm)Not AvailableMoto G51 has a dedicated macro lens for close-up photography.
Wide Angle + MacroNot Available13MP f/2.2 (Not Specified)Razr 40 combines wide-angle and macro capabilities into one lens for flexibility.
Video1080p@30/60/240fps4K@30fps, 1080p@30/60fpsRazr 40 has the ability to record in 4K.
Video StabilizationNoYes (EIS & OIS)Razr 40 offers superior video stabilization for smoother footage.
FeaturesTriple Cam, PDAF, LAF, etc.Dual Cam, OIS, Night ModeRazr 40 has optical stabilization for superior low-light shots and video capture, along with Night Mode.
Software
OSAndroid 11 (upgradable to 12)Android 13 (upgradable to 16)Razr 40 has a newer OS, meaning more features and longer support with future updates.
Connectivity
Wi-Fi802.11acWi-Fi 6 (802.11ax)Razr 40 has a newer Wi-Fi standard, offering faster and more reliable connections.
Bluetooth5.15.3Razr 40 will have better energy efficiency and performance with newer Bluetooth standard.
SIMDual Nano SIMDual Nano SIM/eSIMRazr 40 gives the flexibility to use an eSIM for better travel management and dual carriers.
Storage
Internal64/128GB128/256GBRazr 40 has more storage options.
RAM4/8GB8/12GBRazr 40 will handle more apps and multitasking more easily due to its superior RAM.
ExpandableNoNoNeither phone offers expandable storage.
Audio
QualityDolby Atmos, 2 micsDolby Atmos, Stereo Spkrs, 3 micsRazr 40 offers a superior audio experience, with stereo speakers for richer sound and 3 microphones for clearer audio recording.
Security
FeaturesSide FingerprintSide FingerprintBoth provide biometric security via a side mounted sensor.
Build Quality
Screen ProtectionNot SpecifiedCorning Gorilla Glass VictusRazr 40 provides superior screen protection for a more durable and scratch resistant screen.
Sensors
SensorsProximity, Accelerometer, GyroscopeProximity, Accelerometer, Compass, GyroscopeRazr 40 provides more comprehensive sensor suit for better motion tracking and gaming.

2. Key Insights

Motorola Moto G51 5G Strengths

  • Battery Life: The larger 5000mAh battery means it will likely outlast the Razr 40 on a single charge.
  • Dedicated Lenses: It includes dedicated wide-angle and macro lenses, which some photographers may find useful.
  • Affordability: The Moto G51 is a more budget-friendly device.

Motorola Razr 40 Strengths

  • Unique Form Factor: The foldable design offers a compact footprint and a unique user experience.
  • Performance: The Snapdragon 7 Gen 1 chipset offers significantly better performance.
  • Display Quality: The higher resolution, refresh rate, and brightness make for a superior viewing experience.
  • Camera Capabilities: It takes better pictures with a 64MP standard lens, and also offers 4K video with improved stabilization.
  • Advanced Features: Reverse and wireless charging add convenience.
  • Future-Proofing: Newer software, Wi-Fi, and Bluetooth standards provide better future compatibility.
  • Build Quality: It has more advanced screen protection.

Trade-offs and Limitations

  • Moto G51 5G: The dated chipset means slower performance compared to the Razr 40, and the IPS display is not as impressive as OLED panels. It also has very basic charging.
  • Motorola Razr 40: Battery life may be shorter, and while the camera has many features, it is not a dedicated camera. Its foldable design can make it a little less sturdy overall.

3. User Profiles and Recommendations

Motorola Moto G51 5G:

  • Budget-conscious users: Perfect for someone who needs a reliable smartphone with long battery life but doesn't want to break the bank.
  • Casual users: Great for daily tasks like browsing, social media, and calls.
  • Users who prioritize battery: Best for someone who is often away from power sources and needs the phone to last all day.

Motorola Razr 40:

  • Tech enthusiasts: Ideal for those who want the latest features and design innovations.
  • Content creators: Offers better video recording, stabilized video, and a high-quality display.
  • Users who value performance: Great for gamers and those who heavily use apps that require a lot of processing power.
  • Users who love the convenience: Offers a unique design and features such as wireless charging.

4. Buying Decision Framework

Here are three practical questions to help you choose:

  1. What do you value more: battery life or performance? If you need a device that lasts all day without needing to plug in, the Moto G51 is better. If you need snappier performance and smoother multitasking, go for the Razr 40.
  2. Is a foldable design a must-have, or is a standard phone good enough? If you want a unique and compact design that fits better in your pocket, then the Razr 40 is the better option.
  3. How much are you willing to invest in your phone? If you are on a tight budget, the Moto G51 is the way to go. If you have more to spend and want the latest features, then consider the Razr 40.

Scenario-Based Recommendations:

  • Traveler: The Razr 40, with its compact size, eSIM support, superior display, and camera capabilities, is the winner.
  • Gamer: The Razr 40’s powerful chipset, high refresh rate display, and advanced sensors make for a better gaming experience.
  • Student: If you’re primarily focused on battery life and affordability, the Moto G51 is suitable.
  • Professional: The Razr 40's ability to perform heavy tasks, its excellent screen, great camera, and premium build makes it perfect for on the go productivity.

My Choice:

If I were making the choice today, I would choose the Motorola Razr 40. While the Moto G51 has its merits—particularly its longer battery life and lower price—the Razr 40 wins on so many other levels that are more important to me as a tech enthusiast.

The Razr 40’s combination of a unique, foldable design, significantly better performance, superior display, enhanced camera system, and more up-to-date software make it the clear winner for my needs. I value having the latest technology, and I also appreciate the convenience of the foldable design and wireless charging. While I might occasionally miss the Moto G51's battery life, the Razr 40's faster charging should help alleviate that. I feel the Razr 40 offers more versatility and a better overall experience for my needs.

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.