Nokia X20 vs Asus Zenfone 9 - Detailed Phone Comparison

Detailed Comparison

Specification
Nokia X20
Nokia X20
Nokia

General

Launch Date May 12, 2021 September 15, 2022
Release Year 2021 2022

Physical

Volume 122.5 cm³ 90.79 cm³
Screen Size to Weight Ratio 3.03 "/g 3.49 "/g
Weight 220 g 169 g
Height 168.9 mm 146.5 mm
Width 79.7 mm 68.1 mm
Thickness 9.1 mm 9.1 mm
Foldable Design No No
Available Colors
  • Midnight Sun
  • Nordic Blue
  • Midnight Black
  • Starry Blue
  • Moonlight White
  • Sunset Red

Display

Screen Size 6.67 " 5.9 "
Resolution 1080 x 2400 1080 x 2400
Aspect Ratio 20:9 20:9
Screen-to-Body Ratio 79.8 % 84.2 %
Pixel Density 395 PPI 445 PPI
Refresh Rate N/A 120 Hz
Typical Brightness 450 nits N/A
HBM Brightness N/A N/A
Peak Brightness N/A 1100 nits

Hardware

Battery Capacity per Screen Area 100.47 mAh/in² 123.53 mAh/in²
Battery Density 36.49 mAh/cm³ 47.36 mAh/cm³
Battery Capacity 4470 mAh 4300 mAh
NFC Support Yes Yes
Chipset Qualcomm SM4350 Snapdragon 480 5G (8 nm) Qualcomm SM8475 Snapdragon 8+ Gen 1 (4 nm)
CPU Octa-core (2x2.0 GHz Kryo 460 & 6x1.8 GHz Kryo 460) Octa-core (1x3.19 GHz Cortex-X2 & 3x2.75 GHz Cortex-A710 & 4x1.80 GHz Cortex-A510)
GPU Adreno 619 Adreno 730

Connectivity

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

Software

Operating System Android Android
Initial OS Version 11 12
Maximum OS Version 14 14

Comparison Summary

1. Specifications Comparison

FeatureNokia X20Asus Zenfone 9Practical Impact
Design
Launch Date2021-05-122022-09-15Asus Zenfone 9 is a newer device with potential for longer software support.
Dimensions168.9 × 79.7 × 9.1 mm146.5 × 68.1 × 9.1 mmAsus Zenfone 9 is significantly more compact and easier to handle, especially for one-handed use. The Nokia X20 is larger and more bulky.
Weight220g169gAsus Zenfone 9 is much lighter, making it more comfortable for extended use and carrying.
Display
Size6.67"5.9"Nokia X20 offers a larger screen for media consumption, while Asus Zenfone 9 is more pocketable.
Resolution1080x24001080x2400Both provide Full HD+ sharpness, suitable for daily use.
PPI395445Asus Zenfone 9 has noticeably sharper text and images due to higher pixel density.
TechnologyIPS LCDAMOLEDAsus Zenfone 9 has superior blacks, contrast and colour vibrancy with better visibility in direct sunlight.
Refresh Rate60Hz120HzAsus Zenfone 9 offers much smoother scrolling and animations.
Brightness0 nits1100 nitsAsus Zenfone 9 will be significantly more usable in bright, outdoor environments due to superior brightness. The brightness spec for the Nokia X20 is missing.
Performance
ChipsetQualcomm SM4350 Snapdragon 480 5G (8 nm)Qualcomm SM8475 Snapdragon 8+ Gen 1 (4 nm)Asus Zenfone 9 has a much more powerful processor, resulting in faster app launches, smoother multitasking, and better gaming performance.
Antutu Score323,4251,232,500Asus Zenfone 9 scores significantly higher in benchmarks, showing superior performance across all demanding tasks and gaming.
GPUAdreno 619Adreno 730Asus Zenfone 9's GPU is significantly more powerful, handling demanding graphics with ease.
Camera
Main Camera Resolution64MP50MPNokia X20 boasts higher resolution but that doesn't necessarily equate to better image quality.
Main Camera Aperturef/1.79f/1.8Nokia X20 has a slightly wider aperture, which can help in low light situations.
Main Camera Sensor SizeNot specified1/1.56"Asus Zenfone 9's larger sensor size can contribute to better image quality.
Main Camera Sensor ModelNot specifiedSony IMX766Asus Zenfone 9 uses a known quality sensor.
Main Camera Pixel Size0.80 µm1.00 µmAsus Zenfone 9's larger pixel size can contribute to better low-light performance.
Selfie Camera Resolution32MP12MPNokia X20 has a much higher megapixel count for selfies but again, this doesn't always mean better picture quality.
Selfie Camera Aperturef/2.0f/2.45Nokia X20 has a wider aperture, potentially improving low light selfie performance.
Selfie Camera Sensor SizeNot specified1/2.93"Asus Zenfone 9 uses a dedicated image sensor for its front camera.
Selfie Camera Sensor ModelNot specifiedSony IMX663Asus Zenfone 9 uses a known quality sensor.
Selfie Camera Pixel SizeNot specified1.22 µmAsus Zenfone 9 has larger pixel size for better low light performance.
Wide Angle Lens5MPNoneNokia X20 has a dedicated ultrawide camera.
Portrait Mode Lens2MPNoneNokia X20 has a dedicated portrait camera.
Macro Lens2MPNoneNokia X20 has a dedicated macro camera.
Wide Angle + Macro LensNone12MPAsus Zenfone 9 offers a wide angle camera with macro capabilities
Video RecordingUp to 1080p@60fpsUp to 8K@24fps, 4K@120fpsAsus Zenfone 9 has vastly superior video recording capabilities, including 8K recording and slow motion video.
Video StabilizationNoYes (EIS & OIS)Asus Zenfone 9 offers superior stabilization using Electronic Image Stabilization (EIS) and Optical Image Stabilization (OIS).
Slow Motion120 fps480 fpsAsus Zenfone 9 offers superior slow-motion capture.
Camera FeaturesQuadruple camera, autofocus, touch focus, geotagging, panorama, HDR, settings4K/8K video, digital zoom, dual camera, digital/optical stabilization, gimbal, autofocus, touch focus, continuous autofocus, phase detection autofocus, geotagging, panorama, HDR, face detection, settings, RAWAsus Zenfone 9 has more advanced video and camera features, including optical stabilization and RAW capture.
Battery
Capacity4470mAh4300mAhBoth have similar capacity, should offer comparable battery life.
Charging18W Fast Charging30W Fast ChargingAsus Zenfone 9 charges faster which is a huge benefit
Software
Operating SystemAndroid 11Android 12Asus Zenfone 9 has a newer operating system out of the box, and will be supported with the same maximum Android version as the Nokia X20.
Connectivity
WiFi802.11a/b/g/n/ac802.11a/b/g/n/ac/ax (WiFi 6)Asus Zenfone 9 supports newer WiFi standards for faster speeds and better performance.
Bluetooth5.0 LE5.2 LEAsus Zenfone 9 has a more recent Bluetooth standard with wider codec support and additional features.
GPSGPS, A-GPS, GLONASS, GalileoGPS, A-GPS, GLONASS, Beidou, QZSS, Galileo, (L1+L5), GLONASS (L1), BeiDou (B1), Galileo (E1+E5a), BeiDou (B2), NavIC System, QZSS (L1 + L5)Asus Zenfone 9 supports more satellite systems for improved location accuracy.
SIMDual SIM (Nano)Dual SIM (Nano)Both have dual sim capability.
Storage
Internal Storage128GB128GB or 256GBAsus Zenfone 9 has a 256GB variant for more storage.
RAM6GB or 8GB8GB or 16GBAsus Zenfone 9 has a 16GB option for heavy multitasking.
Expandable StorageNoNoNeither phone supports microSD cards
Audio
Quality2 MicrophonesHi-Res Audio, Stereo Speakers, 3 MicrophonesAsus Zenfone 9 has superior audio quality for playback and voice capture.
Security
FeaturesSide-mounted fingerprint sensorSide-mounted fingerprint sensorBoth use side mounted fingerprint scanners.
Build Quality
Screen ProtectionUnknownCorning Gorilla Glass VictusAsus Zenfone 9 has significantly more robust screen protection.
Sensors
SensorsFingerprint, Proximity, Accelerometer, Compass, GyroscopeFingerprint, Proximity, Accelerometer, Compass, Gyroscope, Gravity, HallAsus Zenfone 9 has more sensors for better device functionality.

2. Key Differences Analysis

Nokia X20 Advantages:

  • Larger Screen: The 6.67" display can be better for media consumption, browsing and reading.
  • More Cameras: Boasts more cameras than the Asus, with dedicated lenses for wide-angle, macro, and portrait shots, but the quality may not be as high as on the Asus Zenfone 9.
  • Wider aperture selfie camera: The Nokia X20 has a wider f/2.0 selfie camera aperture, and may be better in low-light conditions.

Practical Implications:

  • The larger screen is ideal for users who prioritize media consumption and prefer larger font sizes on their devices, although the actual display quality may not be as good as the Zenfone 9.
  • The multiple dedicated cameras offer more flexibility when taking photos, but may not be as sharp as on the Zenfone 9.

Asus Zenfone 9 Advantages:

  • Superior Performance: The Snapdragon 8+ Gen 1 chip offers vastly superior speed and efficiency in every day usage, as well as gaming.
  • Compact Design: Lighter, smaller and easier to handle, making it more portable.
  • Superior Display: AMOLED panel with 120Hz refresh rate for vibrant colours and very smooth animations.
  • Much Brighter Screen: Allows for usability in outdoor conditions, and makes content visible in sunlight.
  • Better Main Camera: The Asus Zenfone 9 uses a higher quality sensor, and a larger pixel size, for better image quality, and has OIS for stabilization.
  • Superior Video: 8K video recording, 4K 120 fps recording, and more robust video stabilization.
  • Faster Charging: 30W charging will be much quicker and convenient to the user.
  • Better Connectivity: More robust Wi-Fi and Bluetooth capabilities.
  • Superior Audio: Hi-Res audio, stereo speakers, and noise cancelling microphone.
  • Better Screen Protection: Corning Gorilla Glass Victus for better durability.
  • More RAM: An option for 16GB of RAM, allowing for the use of intensive applications.

Practical Implications:

  • The superior performance allows for intensive use cases such as gaming, multitasking, or video editing.
  • Compact size and light weight makes the phone comfortable and portable.
  • The higher quality display allows for better enjoyment of multimedia content.
  • The superior camera means that better photos and videos are captured, and allows for more cinematic video.
  • Faster charging reduces downtime while using the device.
  • Robust Wi-Fi, bluetooth and location features makes connectivity far more dependable.
  • Superior audio allows for better enjoyment of audio, or when using the phone for voice calls or video.
  • The robust screen will keep the device protected from scratches.

Trade-offs:

  • The Nokia X20 is more budget friendly, but the lack of power, connectivity, display quality and camera quality makes it an inferior product.
  • The Asus Zenfone 9 is more expensive, but offers premium components, and a more premium experience.

3. User Profiles & Recommendations

Nokia X20 Ideal User:

  • Users with a very tight budget seeking a large display.
  • Users who prioritize a basic, functional device, and do not need the latest performance or features.
  • Users who need lots of camera lenses, even if they are not of the highest quality.

Use Cases:

  • Basic web browsing and social media.
  • Casual media consumption (videos, e-books) in indoor settings.
  • Occasional photography in well-lit conditions.

Asus Zenfone 9 Ideal User:

  • Users who value performance and want a compact flagship.
  • Gamers and power users who require speed and efficient processing.
  • Users who prioritize high-quality camera and video recording.
  • Users who want a portable phone with advanced features.

Use Cases:

  • Mobile gaming, especially graphically intensive games.
  • Demanding tasks such as editing photos and videos.
  • Frequent multimedia content consumption and creation, especially in outdoor environments.
  • Professional mobile photography and videography.

Price-to-Value:

  • The Nokia X20 offers basic functionality at a lower price point.
  • The Asus Zenfone 9 is a high performance smartphone with cutting edge features, and offers better value for users who require that level of functionality.

4. Decision Framework

Key Questions:

  1. What are your performance requirements? If you prioritize demanding tasks and gaming, the Asus Zenfone 9 is the clear choice.
  2. How important is camera quality? If you want high quality photos and videos, the Asus Zenfone 9 is far superior.
  3. How do you value portability and ergonomics? If you value small and light devices, the Asus Zenfone 9 is much more compact and easier to handle.

Scenario-Based Recommendations:

  • Budget User: If you are only focused on basic functionality and have a tight budget, the Nokia X20 will work for you. However, you will be sacrificing a lot of performance, camera quality, and display quality.
  • Performance User: If you are a power user or a gamer, the Asus Zenfone 9 is the clear winner with its flagship processor, better display, superior camera and better connectivity features.
  • Mobile Photographer: If you prioritize camera and video capabilities, the Asus Zenfone 9’s better sensor, stabilization, and advanced video features make it the much better choice.

What would I choose?

I would choose the Asus Zenfone 9 without hesitation. While the Nokia X20 offers a larger screen and more cameras, the performance gap is too significant to ignore. The Asus Zenfone 9's powerful processor, superior AMOLED display with a higher refresh rate, vastly superior camera system, much better video recording features, and faster charging make it a significantly better device, even if it comes at a higher price. As someone who values performance and high-quality user experiences, the Zenfone 9 is the obvious choice, and its compact form factor makes it more appealing than other larger and heavier flagship devices. While the Nokia X20 may be adequate for basic tasks, the Asus Zenfone 9 provides a much more refined and powerful mobile experience.

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.

Key Strengths:

  • Mobile technology analysis
  • Digital media communication
  • Technical storytelling
  • User-centric technology insights

Bridging technical complexity with engaging, accessible narratives.