Motorola Moto G51 5G vs Xiaomi Redmi Note 13 4G - Detailed Phone Comparison

Detailed Comparison

Specification

General

Launch Date December 16, 2021 January 15, 2024
Release Year 2021 2024

Physical

Volume 118.69 cm³ 98.16 cm³
Screen Size to Weight Ratio 3.27 "/g 3.54 "/g
Weight 208 g 188.5 g
Height 170.5 mm 162.3 mm
Width 76.5 mm 75.6 mm
Thickness 9.1 mm 8 mm
Foldable Design No No
Available Colors
  • Indigo Blue
  • Bright Silver
  • Aqua Blue
  • Midnight Black
  • Ice Blue
  • Mint Green
  • Ocean Sunset

Display

Screen Size 6.8 " 6.67 "
Resolution 1080 x 2400 1080 x 2400
Aspect Ratio 20:9 20:9
Screen-to-Body Ratio 85.6 % 87.5 %
Pixel Density 387 PPI 395 PPI
Refresh Rate 120 Hz 120 Hz
Typical Brightness N/A N/A
HBM Brightness N/A N/A
Peak Brightness N/A 1800 nits

Hardware

Battery Capacity per Screen Area 108.13 mAh/in² 112.39 mAh/in²
Battery Density 42.13 mAh/cm³ 50.94 mAh/cm³
Battery Capacity 5000 mAh 5000 mAh
NFC Support Yes Yes
Chipset Qualcomm SM4350-AC Snapdragon 480+ 5G (8 nm) Qualcomm SM6225 Snapdragon 685 (6 nm)
CPU Octa-core (2x2.2 GHz Kryo 460 & 6x1.8 GHz Kryo 460) Octa-core (4x2.8 GHz Cortex-A73 & 4x1.9 GHz Cortex-A53)
GPU Adreno 619 Adreno 610

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 13
Maximum OS Version 12 16

Comparison Summary

Alright, let's dive into a head-to-head comparison of the Motorola Moto G51 5G and the Xiaomi Redmi Note 13 4G. Both are compelling contenders in the budget-friendly smartphone arena, but they cater to slightly different needs. Here’s a breakdown that focuses on what these specs mean for you, the user.

1. Specifications Breakdown

Here's a detailed look at how these phones stack up, focusing on real-world implications:

FeatureMotorola Moto G51 5GXiaomi Redmi Note 13 4GReal-World Implications
Design
Size170.5 x 76.5 x 9.1 mm162.3 x 75.6 x 8 mmThe Redmi Note 13 4G is slightly smaller and slimmer, which might feel more comfortable for one-handed use. The Moto G51 5G is a bit taller and thicker.
Weight208g188.5gThe Redmi Note 13 4G is noticeably lighter, making it more comfortable for extended use and carrying around.
Display
Size6.8"6.67"The Moto G51 5G provides a slightly larger canvas, which could be great for media consumption or gaming. The Redmi is a hair smaller, which is a minor difference.
Resolution1080 x 24001080 x 2400Both offer a sharp Full HD+ resolution.
Pixel Density387 PPI395 PPISimilar pixel densities mean both displays look equally sharp, and pixel-level clarity isn’t a noticeable difference.
TechnologyIPS LCDAMOLEDThis is a big one: AMOLED displays (Redmi) offer richer colors, deeper blacks, and better contrast compared to IPS LCDs (Moto). It looks noticeably better, particularly for media consumption, and offers superior power efficiency, especially in dark mode.
Refresh Rate120Hz120HzBoth provide smooth scrolling and animations, making the interface feel responsive.
Brightness0 nits (spec error)1800 nitsThe Redmi Note 13 4G has an exceptionally bright display, making it far more usable in direct sunlight. The Moto’s brightness is unknown and may suffer outdoors.
Performance
ChipsetQualcomm Snapdragon 480+ 5G (8 nm)Qualcomm Snapdragon 685 (6 nm)The Moto G51 5G chipset was a "budget 5G" chip in 2021, so it’s not a powerhouse for tasks. The Redmi, while 4G, uses the newer and more efficient Snapdragon 685.
AnTuTu Score381,000338,000While the Moto G51 5G has a higher benchmark score by 13%, the real world benefit is likely minor. These scores are on the low end and are not performance-oriented.
GPUAdreno 619Adreno 610The Moto G51 5G has a slightly more capable GPU, but both are geared for light gaming, and again, the practical difference in everyday use may not be obvious.
Camera
Standard Camera50MP, f/1.8, 1/2.76", 0.64µm108MP, f/1.7, 1/1.67", 0.64µmThe Redmi Note 13 4G has a significantly higher resolution sensor with a larger size and a slightly wider aperture, suggesting superior image quality and better low-light performance.
Selfie Camera13MP, f/2.2, 1.12µm16MP, f/2.4, 1/3.06", 1.00µmThe Redmi has a slight edge in selfie resolution, while the Moto has a wider aperture. Performance in real-world conditions depends on other factors, and we have limited details here.
Additional Lenses8MP Wide, 2MP Macro8MP Wide + Macro, 2MP Depth,The Moto G51 5G has dedicated wide-angle and macro lenses. The Redmi features a wide-angle lens paired with a macro functionality plus a depth sensor for better portrait mode effects. The utility depends on user’s preferences and whether they want separate lens for these functionalities.
VideoUp to 1080p@240fpsUp to 1080p@30fpsThe Moto G51 5G can do slow motion at 240fps, while Redmi can only do 60 fps. Neither camera offers 4K.
DXOMarkNot testedMobile: 75 (photo 75, video 68)The Redmi's camera performance is fairly good for its class, and the lack of test results on the Moto G51 leaves it in an unknown spot.
Battery Life
Capacity5000 mAh5000 mAhBoth have similar battery sizes, suggesting comparable battery life.
Charging10W Fast Charging33W Fast ChargingThe Redmi Note 13 4G charges much faster, which is a significant practical advantage.
Software
OSAndroid 11 (upgradable to 12)Android 13 (upgradable to 16)The Redmi offers a more up-to-date Android experience, and that will likely mean more time before losing software support.
Connectivity
Wi-FiDual-band ACDual-band ACBoth offer common standards for Wi-Fi connectivity.
Bluetooth5.1 LE5.1 LE, APT-x, LDAC, SBC, AACThe Redmi Note 13 4G has more modern Bluetooth codec support for higher quality audio.
GPSGPS, A-GPS, GLONASS, Beidou, SUPL, GalileoGPS, A-GPS, GLONASS, Beidou, GalileoBoth offer common GPS support. The Moto's extra SUPL support isn't likely a significant differentiator for most users.
Storage
Internal Storage64GB/128GB128GB/256GB/512GBThe Redmi has much more storage capacity, which is a big plus for users who want to keep many files, apps, photos, and videos.
RAM4 GB or 8 GB6 GB or 8 GBBoth offer options for good multitasking, though the Redmi Note 13 4G starts a step up.
Expandable StorageNoNoNeither phone offers expandable storage.
Audio
QualityDolby Atmos, 2 MicrophonesDolby Atmos, Stereo SpeakersBoth offer Dolby Atmos enhancements. The Redmi’s stereo speakers are a plus for an enhanced audio experience. The Moto has an extra microphone, which may or may not be useful for day-to-day activities.
Security
FeaturesSide-mounted fingerprint sensorBasic fingerprint sensorThe Moto G51 5G has a side-mounted sensor, often preferred for ergonomics, while Redmi's is more basic.
Build Quality
ProtectionUnknownCorning Gorilla Glass 3The Redmi has basic screen protection.
Sensors
SensorsFingerprint, Proximity, Accelerometer, GyroscopeFingerprint, Proximity, Accelerometer, Compass, GyroscopeThe Redmi has an additional compass sensor, which may be of importance to some users.

2. Key Insights

Motorola Moto G51 5G:

  • Strengths: Slightly larger screen, higher performance benchmark, higher FPS video, side-mounted fingerprint sensor, extra microphone.
  • Competitive Advantages: Its 5G capability is a big deal, but you might not take full advantage of it where 5G isn't widely used, and we're not really seeing faster wireless speeds in many cases.
  • Trade-offs: Older software, IPS LCD screen, unknown brightness, larger/heavier design, slower charging, and less storage for equivalent RAM models.

Xiaomi Redmi Note 13 4G:

  • Strengths: Superior AMOLED display, extremely high brightness, much better main camera, faster charging, greater storage options, slightly more modern chipset, more capable Bluetooth.
  • Competitive Advantages: The screen is the star, complemented by the great main camera, faster charging, and its software support life will be much longer.
  • Trade-offs: It’s only 4G, a slightly lower benchmark, and a basic fingerprint sensor.

3. User Profiles and Recommendations

  • Motorola Moto G51 5G is best for:

    • Budget-conscious users who need 5G and are not concerned with having the newest OS or the best possible display.
    • People who enjoy having a larger screen and like side-mounted fingerprint sensors.
    • Users who need a basic 5G phone that works well enough.
  • Xiaomi Redmi Note 13 4G is best for:

    • Users who prioritize a great screen experience and want to use the phone outdoors often.
    • Those who take many pictures and value great camera image quality for social media.
    • People who prefer a faster-charging, lighter device and have lots of files.

4. Buying Decision Framework

Ask yourself these questions before deciding:

  1. Do I need 5G connectivity, or is 4G sufficient? 5G capability is not free, and the benefit may not be worth it if 5G networks aren't used widely. The Redmi Note 13 has the better feature set for a 4G phone.
  2. Is display quality a top priority? The Redmi's AMOLED display is in a completely different league and is the main selling point. If you care about color accuracy, brightness, and contrast, it's a clear winner.
  3. How important is fast charging, storage, and software support? The Redmi is dramatically faster with charging and gives you more storage options and a longer software lifespan.

Scenario-Based Recommendations:

  • Budget Gamer: The Motorola Moto G51 5G has a slight edge with its GPU, but neither phone is a gaming monster.
  • Media Enthusiast: The Xiaomi Redmi Note 13 4G offers a more immersive experience with its AMOLED screen and much higher brightness, making watching videos more enjoyable and better for outdoor usage.
  • Social Media Photographer: The Xiaomi Redmi Note 13 4G has a clear advantage, with a larger sensor and higher resolution, translating to better images.
  • On-the-go Professional: The Xiaomi Redmi Note 13 4G's faster charging and more comfortable form factor are better for a busy lifestyle.
  • Price Sensitive User: The Motorola Moto G51 5G may be cheaper, but not by a large amount, so it’s likely a better idea to get the Xiaomi Redmi Note 13 4G

My Choice

If it were my money, I’d pick the Xiaomi Redmi Note 13 4G. The main reason is the display. The AMOLED panel is such a huge step up over a standard IPS LCD, especially when you factor in the vastly improved brightness. It makes a huge difference in daily usage and media consumption. The faster charging is another bonus, and the camera is better for casual use. While the lack of 5G may be a concern for some, the benefits you get with this phone far outweigh that single drawback for me.

While the Moto has a side-mounted fingerprint sensor and slightly better benchmark scores, the overall experience with the Redmi Note 13 4G feels far more premium due to its superior display and camera. It's a great example of how focusing on real-world experience over raw specifications can make a big difference.

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.