Oppo Reno5 5G vs Motorola Moto G51 5G - Detailed Phone Comparison

Detailed Comparison

Specification

General

Launch Date January 7, 2021 December 16, 2021
Release Year 2021 2021

Physical

Volume 92.26 cm³ 118.69 cm³
Screen Size to Weight Ratio 3.74 "/g 3.27 "/g
Weight 172 g 208 g
Height 159.1 mm 170.5 mm
Width 73.4 mm 76.5 mm
Thickness 7.9 mm 9.1 mm
Foldable Design No No
Available Colors
  • Starry Black
  • Galactic Silver
  • Azure Blue
  • Indigo Blue
  • Bright Silver
  • Aqua Blue

Display

Screen Size 6.43 " 6.8 "
Resolution 1080 x 2400 1080 x 2400
Aspect Ratio 20:9 20:9
Screen-to-Body Ratio 85.5 % 85.6 %
Pixel Density 409 PPI 387 PPI
Refresh Rate 90 Hz 120 Hz
Typical Brightness 430 nits N/A
HBM Brightness N/A N/A
Peak Brightness 750 nits N/A

Hardware

Battery Capacity per Screen Area 104.00 mAh/in² 108.13 mAh/in²
Battery Density 46.61 mAh/cm³ 42.13 mAh/cm³
Battery Capacity 4300 mAh 5000 mAh
NFC Support Yes Yes
Chipset Qualcomm SM7250 Snapdragon 765G 5G (7 nm) Qualcomm SM4350-AC Snapdragon 480+ 5G (8 nm)
CPU Octa-core (1x2.4 GHz Kryo 475 Prime & 1x2.2 GHz Kryo 475 Gold & 6x1.8 GHz Kryo 475 Silver) Octa-core (2x2.2 GHz Kryo 460 & 6x1.8 GHz Kryo 460)
GPU Adreno 620 Adreno 619

Connectivity

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

Software

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

Comparison Summary

1. Specifications Comparison

FeatureOppo Reno5 5GMotorola Moto G51 5GPractical Impact
Design
Dimensions159.1 × 73.4 × 7.9 mm170.5 × 76.5 × 9.1 mmOppo Reno5 5G is more compact and easier to handle with one hand. The Moto G51 5G is larger and may feel bulky.
Weight172g208gOppo Reno5 5G is significantly lighter, making it more comfortable for extended use and carrying around.
Display
Size6.43"6.8"Motorola Moto G51 5G has a larger screen, better for media consumption, gaming, and multi-tasking. The Oppo is more compact.
Resolution1080x24001080x2400Both offer the same sharpness for most tasks.
PPI409387Oppo Reno5 5G has a slightly sharper display, although the difference is subtle.
TechnologyAMOLEDIPS LCDOppo Reno5 5G offers better contrast, deeper blacks, more vibrant colors and superior power efficiency for dark themes, especially for watching videos, playing games, or reading at night.
Refresh Rate90Hz120HzMotorola Moto G51 5G provides smoother scrolling and animations, which can make the experience feel more fluid.
Brightness750 nits0 nitsOppo Reno5 5G is much brighter, making it much easier to use outdoors in bright sunlight. The Moto G51 5G brightness spec is missing.
Performance
ChipsetSnapdragon 765G 5G (7 nm)Snapdragon 480+ 5G (8 nm)Oppo Reno5 5G has a more powerful chipset for everyday use and moderate gaming, but the benchmark shows the Moto G51 as slightly faster. In practice, both perform well, but the 765G should be more power efficient due to a smaller process size (7nm vs 8nm).
AnTuTu Score325,000381,000Motorola Moto G51 5G has a higher benchmark score. In daily use, the difference might not always be noticeable.
GPUAdreno 620Adreno 619Oppo Reno5 5G’s GPU might offer slightly better graphics performance for gaming. The difference is not huge for most games.
Battery
Capacity4300mAh5000mAhMotorola Moto G51 5G likely offers longer battery life, making it better for all-day use.
Charging65W Fast Charging10W Fast ChargingOppo Reno5 5G charges much faster, useful for quick top-ups.
FeaturesReverse Charging, Dual-CellNoneOppo Reno5 5G can charge other devices and potentially has better thermal management due to dual-cell design.
Camera
Main Camera64MP f/1.7, 1/1.7" sensor50MP f/1.8, 1/2.76" sensorOppo Reno5 5G has a better main camera, capturing more details and better low light performance due to the larger sensor and wider aperture.
Selfie Camera32MP f/2.4, 0.80µm13MP f/2.2, 1.12µmOppo Reno5 5G captures more detailed selfies, while Motorola Moto G51 5G potentially performs better in low light due to the wider aperture and larger pixel size.
Wide Angle Lens8MP f/2.28MPOppo Reno5 5G offers better Wide Angle + Macro
Macro Lens2MP f/2.42MP, 1.75µmBoth are similar for macro shots.
Wide Angle LensNone8MPMotorola Moto G51 5G has a wide angle lens, giving more flexibility
Video4K@30fps HDR, EIS1080p@60fps, EISOppo Reno5 5G can shoot in 4K, offering higher quality video recording.
Software
OSAndroid 11 (upgradable to 12)Android 11 (upgradable to 12)Both phones share the same version of Android with ability to upgrade, so both will be similar in software features.
Connectivity
Wi-FiWi-Fi MiMOWi-Fi DirectOppo Reno5 5G may offer slightly better Wi-Fi performance in complex network environments thanks to Wi-Fi MiMO.
BluetoothaptX, LDACNoneOppo Reno5 5G offers higher quality audio output for Bluetooth headphones, benefiting those using wireless headphones.
GPSQZSSSUPLThe phones offer comparable GPS performance for navigation.
Storage
Internal128GB/256GB64GB/128GBOppo Reno5 5G offers more storage for apps, photos, videos.
RAM8GB/12GB4GB/8GBOppo Reno5 5G has more RAM, enabling smoother multitasking and performance with demanding applications.
Expandable StorageNoNoNeither phone allows external storage expansion.
Audio
QualityStereo Speakers2 MicrophonesOppo Reno5 5G provides a more immersive audio experience with stereo speakers, beneficial for media consumption. Motorola Moto G51 has 2 microphones for better audio capture
Security
Fingerprint SensorBasicSide-mountedMotorola Moto G51 5G provides a slightly more convenient unlock option for many users.
Build Quality
Screen ProtectionGorilla Glass 3+UnknownOppo Reno5 5G has better screen protection against scratches.
Sensors
SensorsCompassNoneOppo Reno5 5G offers additional sensor useful for navigation and gaming.

2. Key Differences Analysis

Oppo Reno5 5G Advantages:

  • Superior Display: AMOLED screen offers vibrant colors, deep blacks, better contrast and is much brighter.
  • Better Main Camera: Larger sensor and wider aperture results in better image quality, particularly in low-light.
  • Faster Charging: 65W charging significantly reduces charging times.
  • More RAM and Storage: 8GB/12GB RAM options ensure smoother performance, and up to 256 GB storage is available.
  • Better Build Quality: Gorilla Glass 3+ screen protection for increased durability.
  • Better Audio: Stereo speakers provide a more immersive audio experience.
  • More Advanced Connectivity: Wi-Fi MiMO for potentially better wireless connections, and aptX and LDAC for higher quality Bluetooth audio output.
  • Reverse Charging: Can be used as a power bank for other devices.
  • More advanced video recording: The Reno5 5G is capable of recording 4k video.

Motorola Moto G51 5G Advantages:

  • Larger Display: 6.8" screen, which is better for media consumption and gaming.
  • Higher Refresh Rate: 120Hz for smoother scrolling and animations.
  • Larger Battery: 5000mAh provides longer battery life.
  • Higher AnTuTu Score: A higher benchmark score for performance, indicating potentially better gaming experience.
  • Wider Angle Camera A wide angle lens provides additional shooting options
  • Side-mounted Fingerprint Sensor: Some users find this more convenient.
  • Wider Aperture Self Camera: Potential advantage for low-light selfies

Significant Trade-offs:

  • Oppo Reno5 5G: Compromises on battery life, screen size, and refresh rate for a better display, main camera and faster charging.
  • Motorola Moto G51 5G: Compromises on display quality, main camera performance and charging speed for a larger display, longer battery life and higher refresh rate.

3. User Profiles & Recommendations

Oppo Reno5 5G is Ideal For:

  • Media Enthusiasts: Those who prioritize a vibrant display for watching videos and browsing content, as well as high quality audio.
  • Photography Lovers: Users who value a better main camera for capturing detailed photos and videos.
  • Power Users: Individuals who need fast charging and a decent amount of RAM for multitasking.
  • Users who want a higher quality display and are willing to trade other aspects
  • Users who want higher quality video

Use Cases:

  • Watching HDR content on the vibrant AMOLED display.
  • Taking high-quality photos and videos with the advanced main camera.
  • Fast-paced gaming and multitasking on the higher RAM and more powerful processor
  • Quickly charging the phone on the go using 65W fast charging.

Motorola Moto G51 5G is Ideal For:

  • Budget-conscious users who want a larger display and longer battery life.
  • Casual Gamers who value a higher refresh rate.
  • Users who prioritize battery life and screen size.

Use Cases:

  • Binge-watching movies and TV shows on the larger screen.
  • Playing games that benefit from the 120Hz refresh rate.
  • Users who need a phone that can last a full day on a single charge.
  • Using the phone as a navigation tool, and other basic phone functions.
  • Users who want a wider angle lens for wider perspectives

Price-to-Value:

  • The Oppo Reno5 5G is likely the more premium phone, offering more features for those who value them.
  • The Motorola Moto G51 5G is the budget choice with a focus on screen size and battery life.

4. Decision Framework

Key Questions for Buyers:

  1. Which is more important to you, display quality or screen size/smoothness? (AMOLED vs IPS LCD, brightness, refresh rate)
  2. Do you prioritize camera quality or battery life? (Oppo offers better main camera and charging, while Moto prioritizes battery life)
  3. What use cases do you prioritize? (Are you a media enthusiast, a gamer, or do you just need a long-lasting phone?)

Scenario-Based Recommendations:

  • Scenario 1: If you watch a lot of videos and value vibrant colors, the Oppo Reno5 5G is the better choice.
  • Scenario 2: If you need a phone with long battery life for a full day and prefer a larger screen, the Motorola Moto G51 5G is more suitable.
  • Scenario 3: If you prioritize capturing high-quality photos and videos, particularly in low-light, and don't mind sacrificing battery life and larger screen, choose the Oppo Reno5 5G.
  • Scenario 4: If you are on a tighter budget and want good all-around performance, a large display, and smooth display, the Motorola Moto G51 5G offers better value, while making compromises on the display and charging.

My Choice

If I were choosing between these two phones, I would choose the Oppo Reno5 5G. While the Motorola Moto G51 5G has a larger display and better battery life, the superior display quality of the AMOLED panel, better main camera, faster charging, more RAM, and premium build quality make the Oppo Reno5 5G a much more compelling option. For my personal use case, the better quality display and better quality camera is much more important than the larger screen and larger battery. I also value the fact that it is smaller, more compact, and lightweight. The faster charging also means I can quickly top up the battery, which mitigates the downside of the smaller battery. I also appreciate the better quality audio output and higher resolution video recording. While I do value battery life, the other features outweigh the benefit of the larger battery offered by the Moto G51.

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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Bridging technical complexity with engaging, accessible narratives.