Motorola One 5G Ace vs Realme C51 - Detailed Phone Comparison

Detailed Comparison

Specification
Realme C51
Realme C51
Realme

General

Launch Date January 14, 2021 August 1, 2023
Release Year 2021 2023

Physical

Volume 125.14 cm³ 102.59 cm³
Screen Size to Weight Ratio 3.16 "/g 3.62 "/g
Weight 212 g 186 g
Height 166.1 mm 167.2 mm
Width 76.1 mm 76.7 mm
Thickness 9.9 mm 8 mm
Foldable Design No No
Available Colors
  • Frosted Silver
  • Volcanic Gray
  • Mint Green
  • Carbon Black

Display

Screen Size 6.7 " 6.74 "
Resolution 1080 x 2400 720 x 1600
Aspect Ratio 20:9 20:9
Screen-to-Body Ratio 85.7 % 85.5 %
Pixel Density 393 PPI 260 PPI
Refresh Rate N/A 90 Hz
Typical Brightness N/A N/A
HBM Brightness N/A N/A
Peak Brightness N/A 560 nits

Hardware

Battery Capacity per Screen Area 111.38 mAh/in² 110.07 mAh/in²
Battery Density 39.96 mAh/cm³ 48.74 mAh/cm³
Battery Capacity 5000 mAh 5000 mAh
NFC Support Yes Yes
Chipset Qualcomm SM7225 Snapdragon 750G 5G (8 nm) Unisoc Tiger T612 (12 nm)
CPU Octa-core (2x2.2 GHz Kryo 570 & 6x1.8 GHz Kryo 570) Octa-core (2x1.8 GHz Cortex-A75 & 6x1.8 GHz Cortex-A55)
GPU Adreno 619 Mali-G57

Connectivity

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

Software

Operating System Android Android
Initial OS Version 10 13
Maximum OS Version

Comparison Summary

1. Specifications Comparison

FeatureMotorola One 5G AceRealme C51Practical Impact
Design
Dimensions166.1 × 76.1 × 9.9 mm167.2 × 76.7 × 8 mmRealme C51 is slightly taller, but noticeably thinner and likely feels more modern.
Weight212g186gRealme C51 is significantly lighter, making it more comfortable for long-term use.
Display
Size6.7"6.74"Nearly identical screen sizes, a negligible difference.
Resolution1080x2400720x1600Motorola One 5G Ace offers a much sharper display with more detail, leading to better text and image clarity.
Pixel Density393 PPI260 PPIMotorola One 5G Ace's display appears much sharper and less pixelated.
TechnologyIPS LCDIPS LCDBoth have similar LCD screen technology, typical for their price range.
Refresh Rate60Hz90HzRealme C51 offers smoother scrolling and animations, making it appear more fluid.
Brightness0 nits0 nitsPeak brightness is identical; how viewable they are in bright sunlight will be similar.
Performance
ChipsetSnapdragon 750G 5G (8 nm)Unisoc Tiger T612 (12 nm)Motorola One 5G Ace offers significantly better performance, resulting in faster app loading and overall responsiveness.
AnTuTu Score330,000220,000Motorola One 5G Ace will feel noticeably faster, especially when multitasking and gaming.
GPUAdreno 619Mali-G57Motorola One 5G Ace's GPU provides better graphics performance for gaming and GPU-intensive tasks.
Camera
Rear Main Camera48MP, f/1.7, 0.80µm50MP, f/1.8, 0.64µm, 1/2.76"Realme C51's main sensor has a higher megapixel count but smaller pixel size, while Motorola has a larger aperture. Motorola may perform better in low-light scenarios.
Front Camera16MP, f/2.2, 1.12µm5MP, f/2.2, 1.12µm, 1/5"Motorola One 5G Ace produces significantly higher quality selfies, with more details.
Wide Angle Lens8MP, f/2.2, 1.12µmN/AMotorola One 5G Ace allows you to capture more in the frame with its wide-angle lens.
Macro Lens2MP, f/2.4, 1.75µmN/AMotorola One 5G Ace allows you to capture close-up shots, though 2MP is low resolution.
Video RecordingUp to 4K@30fpsUp to 1080p@30fpsMotorola One 5G Ace can record significantly higher quality video; 4K provides better detail.
Battery
Capacity5000mAh5000mAhBoth should offer comparable battery life with typical usage.
Charging15W Fast Charging33W Fast ChargingRealme C51 charges significantly faster, reducing downtime.
Software
OSAndroid 10Android 13Realme C51 comes with a more recent version of Android, likely with the latest features and security patches.
Connectivity
Wi-Fi802.11ac, Dual-band802.11ac, Dual-band, Wi-Fi MiMOVery similar Wi-Fi capabilities, Realme C51 includes Wi-Fi MiMO support for faster connection speeds.
Bluetooth5.1 LE5.0 LE , LDAC, SBC, AACMotorola One 5G Ace has a slightly more recent Bluetooth version; Realme supports higher audio quality through LDAC and other codecs.
GPSGPS, A-GPS, GLONASS, SUPL, GalileoGPS, A-GPS, GLONASS, GalileoSimilar GPS capabilities, Motorola has additional SUPL support.
SIMSingle SIMDual SIM Dual StandbyRealme C51 offers dual-SIM support, which is useful for managing multiple numbers.
Storage
Internal Storage64GB or 128GB64GB, 128GB, or 256GBRealme C51 offers an additional 256GB storage option, and may have cheaper base versions.
RAM4GB or 6GB4GB or 6GBBoth phones have similar RAM options, adequate for moderate multitasking.
Expandable StorageNoNoNeither phone allows for expandable storage, you are limited to the internal storage.
Audio
Audio Quality2 microphonesNoise cancellation microphoneMotorola features 2 microphones; Realme C51 has one microphone with noise cancellation, this likely improves call quality.
Security
Fingerprint SensorRear-mountedSide-mountedRealme C51's side-mounted fingerprint sensor is generally considered more modern and convenient.
Sensors
SensorsBiometric: Fingerprint; Proximity: Proximity; Motion: Accelerometer, Compass, GyroscopeBiometric: Fingerprint; Proximity: Proximity; Motion: AccelerometerMotorola One 5G Ace offers a more comprehensive set of sensors which may enhance gaming and other apps.

2. Key Differences Analysis

Motorola One 5G Ace Advantages:

  • Sharper Display: Higher resolution and pixel density mean clearer text, images, and video.
  • Significantly Better Performance: The Snapdragon 750G chipset offers a substantial performance advantage over the Unisoc T612, resulting in smoother app loading, better multitasking, and improved gaming experience.
  • Superior Camera System:
    • Much higher resolution front camera for better selfies and video calls.
    • Wide-angle lens adds versatility for landscape and group photos.
    • Macro lens for capturing close-up detail (though limited by 2MP).
    • 4K video recording for significantly higher quality video capture.
  • More comprehensive sensor package Offers gyroscope and compass, enabling advanced features and gaming.

Realme C51 Advantages:

  • Newer Android Version: Comes with Android 13 out of the box, providing the latest features and security updates.
  • Faster Charging: 33W fast charging significantly reduces charging time compared to 15W.
  • Slightly Smoother Display: 90Hz refresh rate offers a slightly smoother visual experience when scrolling.
  • Dual SIM: Ability to use two SIM cards simultaneously, useful for work and personal numbers.
  • Lighter and Thinner Build: More comfortable to hold for extended periods, feels more modern.
  • Potentially more storage: Offers a 256GB storage option, whereas the Motorola One 5G Ace is limited to 128GB.
  • Audio codecs for improved sound quality: Supports LDAC, SBC and AAC audio codecs for higher quality Bluetooth audio.

Trade-offs:

  • Motorola One 5G Ace sacrifices a thinner design, lighter weight, newer software, faster charging and dual SIM support for superior performance, display sharpness, and camera quality.
  • Realme C51 trades performance, screen resolution, and camera features for a more modern design, lighter weight, faster charging, and a newer operating system.

3. User Profiles & Recommendations

Motorola One 5G Ace is ideal for:

  • Users who prioritize display quality: Those who value a sharp, clear display for reading, browsing, and watching videos.
  • Performance-conscious users: Gamers and multitaskers who need a phone that can handle demanding tasks smoothly.
  • Photo and video enthusiasts: Those who want versatile cameras, and especially those who take a lot of selfies, or need 4K recording.
  • Users who don't need dual SIM: Single-SIM users who are happy with a slightly older Android.
  • Users who do not need a faster charger: People who charge their phone overnight will not see the benefit of fast charging.

Realme C51 is ideal for:

  • Users who prioritize a modern design: Those who want a sleek, thin, and lightweight phone.
  • Users who prefer faster charging: People who are often on the go and need to quickly charge their phones.
  • Users who need dual SIM functionality: Those who manage multiple numbers for work and personal use.
  • Users who want a newer Android experience: Those who desire the latest features and security updates.
  • Users who need higher quality Bluetooth Audio: People who prefer wireless audio who would benefit from the LDAC, SBC and AAC codec support.
  • Budget-conscious users: Those who need a capable smartphone at a more affordable price point.

4. Decision Framework

Key Questions for Buyers:

  1. Do you prioritize display sharpness, performance, and camera quality over everything else? If yes, the Motorola One 5G Ace is the better choice.
  2. Is a sleek design, lighter weight, faster charging, and dual SIM more important to you? If yes, the Realme C51 is the better option.
  3. Do you need the latest Android features and security updates? If yes, the Realme C51 with Android 13 is the way to go.

Scenario-Based Recommendations:

  • Heavy Gamer: Motorola One 5G Ace. Better performance and GPU are crucial.
  • Frequent Traveler: Realme C51. Dual SIM, lightweight, fast charging, and more up to date software are important.
  • Social Media User (Photos/Videos): Motorola One 5G Ace. Better front and main cameras, 4K video.
  • Budget-Conscious User: Realme C51. It is likely the cheaper option.
  • General User: Realme C51. It is likely to have more modern features, with better Bluetooth and charging.

My Choice and Why

If I were to choose between these two phones, I would pick the Realme C51. While the Motorola One 5G Ace does offer a significantly better display and performance, the Realme C51 wins on many other key points that I value. As a general user, I prioritize the newer Android OS, the convenience of faster charging and dual SIM support, as well as the lighter, thinner form factor. The performance difference between the Snapdragon 750G and the Unisoc T612, although notable on paper, would not be a noticeable everyday impact for my usage.

Additionally, the audio codec support and the inclusion of Wi-Fi MIMO on the Realme C51 are very important features to me. While I might miss the better camera system of the Motorola, the differences are not enough to make me prefer the Motorola. Given the trade-offs, the more modern features of the Realme C51, at a lower price, make it the more sensible choice for my personal needs.

Emily Harper
Emily Harper

Technology Insights Specialist

Dedicated technology writer specializing in mobile device analysis and technology communication. Expert at translating complex smartphone features into clear, actionable insights for diverse audiences.

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  • Mobile technology analysis
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Bridging technical complexity with engaging, accessible narratives.