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

Detailed Comparison

Specification

General

Launch Date December 16, 2021 May 13, 2022
Release Year 2021 2022

Physical

Volume 118.69 cm³ 100.96 cm³
Screen Size to Weight Ratio 3.27 "/g 3.33 "/g
Weight 208 g 204 g
Height 170.5 mm 163.3 mm
Width 76.5 mm 73.6 mm
Thickness 9.1 mm 8.4 mm
Foldable Design No No
Available Colors
  • Indigo Blue
  • Bright Silver
  • Aqua Blue
  • Silver
  • Gold
  • Black

Display

Screen Size 6.8 " 6.8 "
Resolution 1080 x 2400 1116 x 2480
Aspect Ratio 20:9 20:9
Screen-to-Body Ratio 85.6 % 92.9 %
Pixel Density 387 PPI 400 PPI
Refresh Rate 120 Hz 120 Hz
Typical Brightness N/A N/A
HBM Brightness N/A N/A
Peak Brightness N/A 1500 nits

Hardware

Battery Capacity per Screen Area 108.13 mAh/in² 108.13 mAh/in²
Battery Density 42.13 mAh/cm³ 49.53 mAh/cm³
Battery Capacity 5000 mAh 5000 mAh
NFC Support Yes Yes
Chipset Qualcomm SM4350-AC Snapdragon 480+ 5G (8 nm) Qualcomm SM8450 Snapdragon 8 Gen 1 (4 nm)
CPU Octa-core (2x2.2 GHz Kryo 460 & 6x1.8 GHz Kryo 460) Octa-core (1x3.00 GHz Cortex-X2 & 3x2.50 GHz Cortex-A710 & 4x1.80 GHz Cortex-A510)
GPU Adreno 619 Adreno 730

Connectivity

USB Version 2.0 3.1
OTG Support 1
DisplayPort
DisplayPort Version N/A N/A
USB Features USB Type-C 2.0 USB Type-C 3.1, OTG

Software

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

Comparison Summary

Okay, let's dive into a head-to-head comparison of the Motorola Moto G51 5G and the ZTE Axon 40 Ultra. I'll be looking at this from the perspective of a tech enthusiast who also cares about real-world performance and daily usability.

1. Specifications Breakdown

Here's a detailed breakdown of the key specifications, presented in a way that highlights their real-world implications:

FeatureMotorola Moto G51 5GZTE Axon 40 UltraReal-World Implications
Design
Dimensions170.5 × 76.5 × 9.1 mm163.3 × 73.6 × 8.4 mmThe Motorola is noticeably larger and slightly thicker, potentially less comfortable in smaller hands and pockets.
Weight208g204gBoth phones feel relatively substantial, but the difference is negligible.
Display
Size6.8"6.8"Both offer a large viewing area, good for media consumption and gaming.
Resolution1080x24001116x2480ZTE's higher resolution will result in slightly sharper text and images, although the difference might not be huge in daily use.
PPI387400Similar pixel density means both displays will appear sharp to the human eye.
TechnologyIPS LCDAMOLEDThe ZTE’s AMOLED display will offer far richer colors, deeper blacks, and better contrast, especially noticeable in dark mode.
Refresh Rate120Hz120HzBoth offer smooth scrolling and animation, which is great for gaming and general use.
Brightness0 nits (unspecified)1500 nitsThe Axon's significantly higher brightness ensures better visibility in bright sunlight, making it much easier to use outdoors.
Performance
ChipsetSnapdragon 480+ 5G (8 nm)Snapdragon 8 Gen 1 (4 nm)The ZTE boasts a significantly more powerful chipset, leading to faster app loading, better multitasking, and superior gaming capabilities.
AnTuTu Score381,0001,061,300The Axon's dramatically higher benchmark score means noticeably snappier performance, especially for demanding tasks.
GPUAdreno 619Adreno 730The Axon’s advanced GPU delivers a significant boost in graphics performance, making games run smoother and look better.
Battery Life
Capacity5000mAh5000mAhBoth should offer similar battery endurance but differences may arise due to efficiency of the chipset and display.
Charging10W Fast Charging65W Fast ChargingThe Axon charges much faster, reducing downtime significantly, while the Moto's charging is relatively slow.
Camera
Main Camera50MP (f/1.8, 1/2.76")64MP (f/1.6, 1/1.72")The Axon boasts a superior main sensor that captures more light and detail, promising better low-light performance.
Selfie Camera13MP (f/2.2)16MP (f/2.0)The Axon's front camera has a wider aperture and higher resolution, likely resulting in better selfie quality.
Telephoto LensNone64MP (f/3.5, 1/2")The Axon offers superior zoom capabilities, enabling you to get closer to your subject without sacrificing detail.
Wide Angle Lens8MPNoneThe Moto includes a wide-angle lens, which lets you capture more of a scene in a single shot.
Wide Angle + MacroNone64MP (f/2.3, 1/1.72")The Axon includes a versatile ultrawide lens that doubles as a macro, offering great flexibility.
Macro Lens2MPNoneThe Moto offers an extra macro lens for close-up shots.
ToF 3D sensorNone0.3MPThe Axon offers enhanced depth sensing for better portrait effects.
Video RecordingUp to 1080p@240fpsUp to 8K@30fpsThe Axon enables professional-grade video recording, while the Moto is limited to 1080p. ZTE includes more stabilization technologies.
Software
OSAndroid 11 (upgradable to 12)Android 12 (upgradable to 13)The Axon is running a newer version of Android out of the box, and both are scheduled for the next upgrade.
Connectivity
Wi-FiWi-Fi 5Wi-Fi 6, Wi-Fi MiMoThe Axon supports the latest Wi-Fi standard, providing faster and more reliable connections.
Bluetooth5.15.2The Axon has a slightly more advanced Bluetooth connection.
Storage
Internal64/128 GB128/256/512/1024 GBThe Axon offers significantly more storage, crucial if you have a lot of apps, photos, and videos.
RAM4/8 GB8/12/16/18 GBThe Axon offers superior RAM options, enabling smoother multitasking, particularly for running multiple apps concurrently.

2. Key Insights

Motorola Moto G51 5G:

  • Strengths: Its main selling point would be affordability, potentially as a good entry-level 5G phone. Offers a wide-angle lens.
  • Competitive Advantages: Competitively priced. Large display and 120Hz refresh rate for smooth scrolling and content consumption.
  • Trade-offs: Significant performance compromises compared to the ZTE, particularly with chipset, charging, and display quality.

ZTE Axon 40 Ultra:

  • Strengths: A powerhouse in almost every category: powerful performance, incredible display, pro-grade camera system, and rapid charging.
  • Competitive Advantages: Superior processing capabilities, AMOLED display with high brightness, versatile camera setup with telephoto capabilities, and significantly faster charging.
  • Trade-offs: The wide angle camera is not a standalone module but part of a macro setup. The Axon’s price will be significantly higher, and does not offer an option for expandable storage.

3. User Profiles and Recommendations

Motorola Moto G51 5G:

  • Best Suited For: Budget-conscious users who prioritize a large screen and 5G connectivity.
  • Use Cases: Casual users who primarily browse the web, check social media, watch videos, and engage in light gaming. Ideal as a backup or secondary device.
  • Price-to-Value: The Moto offers basic smartphone functionality at a lower price point. The trade-offs in performance and display quality are significant.

ZTE Axon 40 Ultra:

  • Best Suited For: Power users and content creators who value high performance, stunning visuals, and advanced camera capabilities.
  • Use Cases: Gamers who need a smooth gaming experience, photographers who want high-quality images and videos, and professionals who multitask with demanding apps. Ideal as a primary device.
  • Price-to-Value: The Axon offers top-tier performance and features for a premium price. It justifies its cost with a complete package of cutting-edge technology and capabilities.

4. Buying Decision Framework

Here are three questions to guide your decision:

  1. What’s your primary use case for your phone? Do you primarily need it for browsing and social media, or are you looking for high performance for gaming and demanding apps?
  2. How important is display quality? Is an AMOLED display with higher brightness essential for your daily usage, or will an IPS LCD suffice?
  3. What’s your budget? Are you looking for the best value at a more accessible price, or are you willing to spend more for a flagship experience?

Scenario-Based Recommendations:

  • Budget-Conscious User: If you’re on a strict budget and primarily need basic smartphone functionality, the Motorola Moto G51 5G is more appropriate.
  • Casual User: For browsing, social media, and casual media consumption, the Motorola Moto G51 5G will work well, but a lot of the features are not utilized.
  • Gaming Enthusiast: If you’re a gamer who values performance and smooth gameplay, the ZTE Axon 40 Ultra is definitely the better choice.
  • Photography Lover: If you're passionate about mobile photography, the ZTE Axon 40 Ultra's superior camera system with multiple lenses and high-resolution capabilities will be a better fit.
  • Power User: If you regularly use resource-intensive apps, multitask, and need seamless performance, the ZTE Axon 40 Ultra is the way to go.

My Choice

If I were choosing between these two phones, I would absolutely go with the ZTE Axon 40 Ultra.

Here's why:

  • Superior Performance: As someone who values smooth, responsive performance, the Snapdragon 8 Gen 1 chip and generous RAM of the ZTE are incredibly appealing.
  • High-Quality Display: The AMOLED display with 1500 nits of brightness will make a huge difference in daily usability, especially when viewing content outdoors.
  • Advanced Camera System: I would prefer the versatility offered by the ZTE, with its impressive main, telephoto, and macro cameras, over the very basic setup of the Motorola. The ability to record 8K video would be a great advantage for my needs.
  • Future-Proofing: The Axon has a newer OS and a newer Wi-Fi standard, suggesting better future compatibility.

While the ZTE Axon 40 Ultra will be more expensive, for me, the substantial gains in display quality, performance, and camera capabilities make it well worth the extra investment. The Motorola Moto G51 5G could be appropriate if you needed to be on a very tight budget. But the Axon is the clear winner for overall value and advanced features.

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.