Oppo A15 vs Xiaomi Redmi Note 11S 5G - Detailed Phone Comparison

Detailed Comparison

Specification
Oppo A15
Oppo A15
Oppo

General

Launch Date October 27, 2020 April 23, 2022
Release Year 2020 2022

Physical

Volume 97.69 cm³ 109.13 cm³
Screen Size to Weight Ratio 3.73 "/g 3.38 "/g
Weight 175 g 195 g
Height 164 mm 163.6 mm
Width 75.4 mm 75.8 mm
Thickness 7.9 mm 8.8 mm
Foldable Design No No
Available Colors
  • Dynamic Black
  • Mystery Blue
  • Midnight Black
  • Twilight Blue
  • Star Blue

Display

Screen Size 6.52 " 6.6 "
Resolution 720 x 1600 1080 x 2400
Aspect Ratio 20:9 20:9
Screen-to-Body Ratio 83 % 84.8 %
Pixel Density 269 PPI 399 PPI
Refresh Rate N/A 90 Hz
Typical Brightness 480 nits 450 nits
HBM Brightness N/A N/A
Peak Brightness N/A N/A

Hardware

Battery Capacity per Screen Area 99.51 mAh/in² 114.78 mAh/in²
Battery Density 43.3 mAh/cm³ 45.82 mAh/cm³
Battery Capacity 4230 mAh 5000 mAh
NFC Support No Yes
Chipset Mediatek MT6765 Helio P35 (12 nm) Mediatek Dimensity 810 (6 nm)
CPU Octa-core (4x2.35 GHz Cortex-A53 & 4x1.8 GHz Cortex-A53) Octa-core (2x2.4 GHz Cortex-A76 & 6x2.0 GHz Cortex-A55)
GPU PowerVR GE8320 Mali-G57 MC2

Connectivity

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

Software

Operating System Android Android
Initial OS Version 10 11
Maximum OS Version

Comparison Summary

1. Specifications Comparison

FeatureOppo A15Xiaomi Redmi Note 11S 5GPractical Impact
Design
Dimensions164 × 75.4 × 7.9 mm163.6 × 75.8 × 8.8 mmRedmi Note 11S 5G is slightly thicker and wider, potentially less comfortable in small hands/pockets.
Weight175g195gOppo A15 is lighter, making it more comfortable to hold for extended periods.
Display
Size6.52"6.6"Negligible difference in screen size.
Resolution720x16001080x2400Redmi Note 11S 5G has a significantly sharper display, better for reading and watching videos.
PPI269399Noticeably sharper and more detailed images on the Redmi Note 11S 5G.
Refresh Rate60Hz90HzSmoother scrolling and animations on the Redmi Note 11S 5G.
Brightness0 nits0 nitsBoth are bad values. I suppose that there is missing data. Usually, the higher, the better outdoor visibility.
Performance
ChipsetMediatek MT6765 Helio P35 (12 nm)Mediatek Dimensity 810 (6 nm)Redmi Note 11S 5G is much faster, providing a smoother experience in apps, games, and multitasking.
AnTuTu Score113,000438,700Significant performance difference. Redmi Note 11S 5G handles demanding apps and games much better.
GPUPowerVR GE8320Mali-G57 MC2Redmi Note 11S 5G offers superior graphics performance, better for gaming.
Camera
Main Camera13MP f/2.250MP f/1.8Redmi Note 11S 5G captures significantly more detailed photos, especially in good lighting. Wider aperture allows for better low-light performance.
Selfie Camera5MP f/2.413MP f/2.4Higher resolution selfies on the Redmi Note 11S 5G.
Wide Angle LensN/A8MP f/2.2Redmi Note 11S 5G can capture wider scenes, useful for landscapes and group photos.
Portrait Mode (Depth)2MP f/2.4N/AOppo A15 has a dedicated depth sensor.
Macro Lens2MP f/2.42MP f/2.4Similar macro capabilities.
Video Recording1080p@30fps1080p@30/60fpsRedmi Note 11S 5G offers more flexibility in video recording.
Battery
Capacity4230mAh5000mAhRedmi Note 11S 5G should last longer on a single charge.
Charging10W33WRedmi Note 11S 5G charges much faster, reducing downtime.
Software
OSAndroid 10Android 11Redmi Note 11S 5G has a newer operating system version.
Connectivity
Wi-Fi802.11a/b/g/n802.11a/b/g/n/acRedmi Note 11S 5G supports faster Wi-Fi speeds with 802.11ac.
Bluetooth5.05.1Redmi Note 11S 5G has a slightly more advanced Bluetooth version with additional audio codec support (APT-x, LDAC, AAC).
GPSGPS, A-GPS, GLONASS, Beidou, GalileoGPS, A-GPS, GLONASS, GalileoOppo A15 supports more satellite systems for better location accuracy; Oppo A15 additionally supports: Beidou
Storage
Internal32/128 GB64/128 GBSimilar maximum storage capacity.
RAM2/3/4 GB4/6 GBRedmi Note 11S 5G has more RAM for smoother multitasking.
Expandable StorageNoNoNeither phone supports expandable storage.
Audio
Audio QualityBasicDolby Atmos, Hi-Res Audio, Stereo Speakers, 2 microphonesRedmi Note 11S 5G offers a significantly better audio experience.
Security
Fingerprint SensorRear-mountedSide-mountedSide-mounted fingerprint sensor may be more convenient for some users.
Build Quality
Screen ProtectionCorning Gorilla Glass 3Corning Gorilla Glass 3Similar screen protection.

2. Key Differences Analysis

Oppo A15 Advantages:

  • Lighter: More comfortable for prolonged use.
  • GPS: Oppo A15 supports more satellite systems for better location accuracy; Oppo A15 additionally supports: Beidou
  • Portrait Mode (Depth) camera: Has a dedicated depth sensor

Practical Implications: The Oppo A15 might be preferable for users who prioritize portability and comfort.

Xiaomi Redmi Note 11S 5G Advantages:

  • Significantly Higher Performance: Faster processor and more RAM.
  • Superior Display: Higher resolution and refresh rate.
  • Better Camera System: Higher resolution main and selfie cameras, plus an ultra-wide lens.
  • Larger Battery and Faster Charging: Longer battery life and quicker charging times.
  • Better Audio: Dolby Atmos, Hi-Res Audio, and stereo speakers.
  • More modern Android version

Practical Implications: The Redmi Note 11S 5G offers a much better overall experience for most users, especially those who value performance, display quality, camera capabilities, and battery life.

Trade-offs:

  • The Redmi Note 11S 5G is slightly heavier and thicker than the Oppo A15.
  • The Redmi Note 11S 5G lacks a dedicated depth sensor.

3. User Profiles & Recommendations

Oppo A15:

  • Ideal User: Someone with a very tight budget who primarily needs a phone for basic communication (calls, texts, and light social media use).
  • Use Cases:
    • A secondary phone for emergencies.
    • A simple device for older adults who are not tech-savvy.
  • Price-to-Value: Only valuable if significantly cheaper than the Redmi Note 11S 5G.

Xiaomi Redmi Note 11S 5G:

  • Ideal User: Someone who wants a well-rounded smartphone with good performance, a decent camera, and long battery life at an affordable price.
  • Use Cases:
    • Everyday use: browsing, social media, communication.
    • Photography: capturing photos and videos in various conditions.
    • Gaming: playing casual and some demanding games.
    • Media consumption: watching videos and listening to music.
  • Price-to-Value: Excellent value for its features and performance.

4. Decision Framework

Key Questions for Buyers:

  1. What is your budget? The Oppo A15 is only a reasonable choice if budget is extremely limited.
  2. What are your primary use cases? If you need good performance, camera quality, and a smooth display, the Redmi Note 11S 5G is the clear winner.
  3. How important is battery life and charging speed? The Redmi Note 11S 5G offers significantly better battery life and faster charging.

Scenario-Based Recommendations:

  • Scenario 1: Extremely Tight Budget: If the Oppo A15 is significantly cheaper and you only need basic functionality, it's a viable option.
  • Scenario 2: Balanced Performance and Features: The Redmi Note 11S 5G is the recommended choice for most users seeking a good balance of features and performance.
  • Scenario 3: Priority on Camera and Media Consumption: The Redmi Note 11S 5G's superior camera, display, and audio make it ideal for photography and media consumption.

Final Decision

I would choose the Xiaomi Redmi Note 11S 5G. The significantly better performance, display, camera, battery, and audio features provide a much more enjoyable and versatile user experience. While the Oppo A15 might be slightly more comfortable to hold due to its lighter weight, the benefits of the Redmi Note 11S 5G far outweigh this minor advantage. The Redmi Note 11S 5G offers a much better price-to-value ratio and is a more future-proof device.

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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