Motorola Moto G51 5G vs Oppo Reno8 - Detailed Phone Comparison

Detailed Comparison

Specification
Oppo Reno8
Oppo Reno8
Oppo

General

Launch Date December 16, 2021 July 25, 2022
Release Year 2021 2022

Physical

Volume 118.69 cm³ 90.77 cm³
Screen Size to Weight Ratio 3.27 "/g 3.58 "/g
Weight 208 g 179 g
Height 170.5 mm 160.6 mm
Width 76.5 mm 73.4 mm
Thickness 9.1 mm 7.7 mm
Foldable Design No No
Available Colors
  • Indigo Blue
  • Bright Silver
  • Aqua Blue
  • Shimmer Gold
  • Shimmer Black

Display

Screen Size 6.8 " 6.4 "
Resolution 1080 x 2400 1080 x 2400
Aspect Ratio 20:9 20:9
Screen-to-Body Ratio 85.6 % 83.9 %
Pixel Density 387 PPI 411 PPI
Refresh Rate 120 Hz 90 Hz
Typical Brightness N/A 430 nits
HBM Brightness N/A 600 nits
Peak Brightness N/A 800 nits

Hardware

Battery Capacity per Screen Area 108.13 mAh/in² 109.86 mAh/in²
Battery Density 42.13 mAh/cm³ 49.58 mAh/cm³
Battery Capacity 5000 mAh 4500 mAh
NFC Support Yes Yes
Chipset Qualcomm SM4350-AC Snapdragon 480+ 5G (8 nm) Mediatek Dimensity 1300 (6 nm)
CPU Octa-core (2x2.2 GHz Kryo 460 & 6x1.8 GHz Kryo 460) Octa-core (1x3.0 GHz Cortex-A78 & 3x2.6 GHz Cortex-A78 & 4x2.0 GHz Cortex-A55)
GPU Adreno 619 Mali-G77 MC9

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 11 12
Maximum OS Version 12 14

Comparison Summary

Okay, let's dive into a detailed comparison of the Motorola Moto G51 5G and the Oppo Reno8. I'll break down the specs, explore the practical implications, and help you figure out which phone might be the right fit for your needs.

1. Specifications Breakdown

Here’s a side-by-side comparison of the key specs, focusing on their real-world impact:

FeatureMotorola Moto G51 5GOppo Reno8Real-World Implications
Design
Dimensions170.5 x 76.5 x 9.1 mm160.6 x 73.4 x 7.7 mmThe Reno8 is noticeably smaller, thinner, and lighter. It'll feel more pocketable and comfortable for one-handed use, while the G51 is larger and bulkier.
Weight208g179gThe Reno8 is significantly lighter, making it more comfortable for extended use. The G51 might feel a bit hefty after a while.
Display
Size6.8"6.4"The G51 has a larger screen, ideal for media consumption. The Reno8 is more compact, potentially better for everyday use and easier to handle.
Resolution1080 x 24001080 x 2400Both have Full HD+ resolution, meaning a sharp image on both screens.
Pixel Density387 PPI411 PPIThe Reno8 is slightly sharper due to a higher pixel density, resulting in slightly more crispness in text and images.
TechnologyIPS LCDAMOLEDThe Reno8’s AMOLED display offers significantly better contrast, deeper blacks, and more vibrant colors. It’s simply more visually appealing with better energy efficiency.
Refresh Rate120Hz90HzThe G51’s higher refresh rate provides a slightly smoother scrolling and animation experience. However, the Reno8’s 90Hz is plenty fluid for most users.
Brightness0 nits800 nitsThe Reno8 will be far easier to view outdoors in direct sunlight. The G51's screen is reported to have 0 nits of brightness, making it likely unusable outdoors.
Performance
ChipsetSnapdragon 480+ 5G (8nm)Dimensity 1300 (6nm)The Reno8’s Dimensity 1300 is a significantly more powerful chip. Expect faster app loading, smoother multitasking, and better gaming performance compared to the G51.
AnTuTu Score381,000699,576The Reno8's AnTuTu score is 84% higher, reinforcing the fact that it will perform much faster.
GPUAdreno 619Mali-G77 MC9The Reno8’s GPU is more powerful, translating into better graphics performance, especially in gaming.
Battery Life
Capacity5000 mAh4500 mAhThe G51 has a slightly larger battery, potentially leading to longer battery life. In reality, it's likely that the Reno8 will also last a full day thanks to its better power efficiency.
Charging10W80WThe Reno8 charges significantly faster. A quick 30-minute charge can add hours of usage. The G51 is stuck with very slow charging by today's standards.
Battery TypeLi-IonLi-PolymerBattery type difference is not very important to the user, but Li-Polymer can be safer.
Camera
Main Camera50MP, f/1.8, 1/2.76" Sensor50MP, f/1.7, 1/1.56" SensorThe Reno8 has a larger main sensor, allowing it to capture more light, resulting in better image quality, especially in low light conditions. The wider aperture also helps with low light.
Selfie Camera13MP, f/2.2, 1.12 µm pixels32MP, f/2.4, 0.8 µm pixelsThe Reno8 has much higher resolution for detailed selfies.
Wide Angle8MP, 1.12 µm pixels8MP, f/2.2, 1/4" Sensor, 1.12 µm pixelsThe wide-angle performance should be comparable but the Reno8 has a slightly smaller sensor.
Macro Lens2MP, 1.75 µm pixels2MP, f/2.4Macro camera performance will be comparable on both.
Video Recording1080p@60fps, 240fps Slow-Mo4K@30fps, 1080p@60fps, 240fps Slow-MoThe Reno8 has a significant advantage in video with 4K resolution recording and electronic image stabilization (EIS). The Motorola doesn't have 4K or video stabilization.
DXOMark ScoreNot Available112 (Mobile), 121 (Photo), 112 (Video)The Oppo Reno8 has scored 112 in DXOMark benchmarks, giving us an idea of its camera performance. The Motorola hasn't been tested, but we know it lags behind the Oppo based on specs.
Software
Operating SystemAndroid 11 (up to 12)Android 12 (up to 14)The Reno8 has a more up-to-date operating system, offering newer features and potentially longer software support.
Connectivity
Wi-FiWi-Fi 5Wi-Fi 6The Reno8 supports Wi-Fi 6, providing potentially faster and more stable internet speeds and less congested usage.
BluetoothBluetooth 5.1Bluetooth 5.3The Reno8 has a newer version of Bluetooth, potentially improving efficiency and device compatibility.
GPSGPS, A-GPS, GLONASS, Beidou, SUPL, GalileoGPS, A-GPS, GLONASS, Beidou, QZSS, Galileo, GPS (L1+L5)The Reno8 supports more satellite systems for better location accuracy.
Storage and RAM
Internal Storage64GB/128GB128GB/256GBThe Reno8 offers more storage options, providing more room for photos, videos, and apps.
RAM4GB/8GB8GB/12GBThe Reno8 provides much more RAM, resulting in more consistent performance and less lag in multitasking.
Expandable StorageNoNoNeither phone supports expandable storage, which can be a limitation if you use many media files.
Audio
QualityDolby Atmos, 2 MicrophonesNoise cancellation microphone, Stereo SpeakersThe Reno8 has stereo speakers for a better soundscape. The Motorola only offers mono sound.
Security
FeaturesSide-mounted fingerprint sensorBasic fingerprint sensorSide-mounted is faster than basic fingerprint readers.
Other
Screen ProtectionUnknownUnknownProtection is not mentioned on either, so we don't know if the screens are scratch-resistant.
SensorsAccelerometer, Gyroscope, Proximity, FingerprintAccelerometer, Compass, Gyroscope, Proximity, FingerprintReno8 includes the compass, which is useful for directional awareness.

2. Key Insights

Motorola Moto G51 5G:

  • Strengths: The main highlight for the G51 is its larger 120Hz screen and larger battery (though not by much). It also has a side-mounted fingerprint sensor.
  • Competitive Advantages: The 120Hz refresh rate is slightly better on paper (though less important than other factors like display technology).
  • Trade-offs: The biggest trade-offs are the outdated IPS display, the much weaker processor, and the lack of fast charging. Camera performance is also mediocre compared to the Oppo. The phone also lacks software support.

Oppo Reno8:

  • Strengths: The Reno8 wins on almost every front with its superior AMOLED display, more powerful processor, significantly faster charging, and better camera quality, especially in video.
  • Competitive Advantages: The standout features include the vibrant AMOLED screen, flagship-level fast charging, and advanced camera features like 4K video and the Sony IMX766 main sensor.
  • Trade-offs: The only real disadvantage for the Reno8 would be the slightly smaller screen and slightly lower battery capacity than the Motorola (though the actual battery life is likely similar thanks to the energy-efficient screen).

3. User Profiles and Recommendations

  • Motorola Moto G51 5G: This phone is best suited for users who prioritize a large screen size and are on a strict budget. It would be a fine option for very basic usage, social media, and content consumption.
  • Oppo Reno8: This phone is for users who want a premium experience without paying top-dollar. It caters to those who appreciate a great screen, fast performance, excellent camera capabilities, and fast charging. It would suit photography enthusiasts, gamers, and users who multitask and use their phone daily.

4. Buying Decision Framework

Here are three questions to help you decide:

  1. How important is display quality to you? If you want deep blacks, vibrant colors, and better outdoor visibility, then the Oppo Reno8 is a must. If you're okay with a more basic LCD display for cost, then you could look at the Motorola.
  2. Do you need fast charging and strong performance? If yes, then the Oppo Reno8 is the clear winner. If you prioritize battery over speed, the Motorola is okay (but won't charge fast at all).
  3. How much value do you place on a good camera? If you want great image and video quality, especially in low-light scenarios, then the Oppo Reno8 is the best choice. The Motorola is weaker.

Scenario-Based Recommendations:

  • Budget-Conscious Casual User: If you simply want a big screen, the Motorola Moto G51 5G can work. However, I strongly recommend spending a bit more for a much better experience on the Oppo Reno8.
  • Content Creator/Photography Enthusiast: The Oppo Reno8 is undoubtedly the better option with its vastly superior camera, 4K video capabilities, and AMOLED screen for editing.
  • Mobile Gamer: The Oppo Reno8 is again the clear winner due to its more powerful chipset, better GPU, and overall faster experience.
  • Power User: The Oppo Reno8, thanks to its faster processor, better multi-tasking, and faster charging, is the best option.

My Choice

For me, the Oppo Reno8 is the clear choice. Even if I am a budget-conscious user, the massive advantages it provides are well worth the added cost. The AMOLED display is a game-changer in visual experience, and the Dimensity 1300 chip is a considerable leap over the dated Snapdragon 480+. The 80W charging is the cherry on top.

The Motorola Moto G51 5G, while having a large display and slightly bigger battery, falls short where it counts – performance, camera, display technology, and charging speed. It would only be an option for a niche group of users with very specific needs, while the Oppo Reno8 is a great all-rounder.

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.