Asus Zenfone 9 vs Asus ROG Phone 7 - Detailed Phone Comparison

Detailed Comparison

Specification

General

Launch Date September 15, 2022 May 1, 2023
Release Year 2022 2023

Physical

Volume 90.79 cm³ 137.21 cm³
Screen Size to Weight Ratio 3.49 "/g 2.84 "/g
Weight 169 g 239 g
Height 146.5 mm 173 mm
Width 68.1 mm 77 mm
Thickness 9.1 mm 10.3 mm
Foldable Design No No
Available Colors
  • Midnight Black
  • Starry Blue
  • Moonlight White
  • Sunset Red
  • Phantom Black
  • Storm White

Display

Screen Size 5.9 " 6.78 "
Resolution 1080 x 2400 1080 x 2448
Aspect Ratio 20:9 20:9
Screen-to-Body Ratio 84.2 % 82.2 %
Pixel Density 445 PPI 395 PPI
Refresh Rate 120 Hz 165 Hz
Typical Brightness N/A N/A
HBM Brightness N/A 1000 nits
Peak Brightness 1100 nits 1500 nits

Hardware

Battery Capacity per Screen Area 123.53 mAh/in² 130.52 mAh/in²
Battery Density 47.36 mAh/cm³ 43.73 mAh/cm³
Battery Capacity 4300 mAh 6000 mAh
NFC Support Yes Yes
Chipset Qualcomm SM8475 Snapdragon 8+ Gen 1 (4 nm) Qualcomm SM8550-AB Snapdragon 8 Gen 2 (4 nm)
CPU Octa-core (1x3.19 GHz Cortex-X2 & 3x2.75 GHz Cortex-A710 & 4x1.80 GHz Cortex-A510) Octa-core (1x3.2 GHz Cortex-X3 & 2x2.8 GHz Cortex-A715 & 2x2.8 GHz Cortex-A710 & 3x2.0 GHz Cortex-A510)
GPU Adreno 730 Adreno 740

Connectivity

USB Version N/A 2.0
OTG Support 1 1
DisplayPort 1
DisplayPort Version N/A 1.4
USB Features USB Type-C, OTG USB Type-C 2.0, OTG, DisplayPort 1.4, Accessory Connector

Software

Operating System Android Android
Initial OS Version 12 13
Maximum OS Version 14 15

Comparison Summary

Okay, let's dive into a head-to-head comparison of the Asus Zenfone 9 and the Asus ROG Phone 7. Both are compelling devices, but they cater to different needs and preferences. I'll break down the technical details, translate them into real-world scenarios, and help you figure out which phone is right for you.

1. Specifications Breakdown

Here's a detailed look at how these two phones stack up, focusing on what each spec actually means for daily usage:

FeatureAsus Zenfone 9Asus ROG Phone 7Real-World Implications
Design
Physical Size146.5 × 68.1 × 9.1 mm173 × 77 × 10.3 mmThe Zenfone 9 is much more compact and pocketable, while the ROG Phone 7 is noticeably larger.
Weight169g239gThe Zenfone 9 is significantly lighter, making it easier to handle for long periods, while the ROG Phone 7's weight is a factor when considering extended use.
Display
Size5.9"6.78"The ROG Phone 7 provides a much more immersive viewing experience thanks to its larger screen, great for media consumption and gaming, whereas the Zenfone 9 will be more compact.
Resolution1080x24001080x2448Both are sharp, but the difference is negligible.
Pixel Density (PPI)445395The Zenfone 9 offers a slightly sharper display due to its higher pixel density, resulting in crisper text and images.
TechnologyAMOLEDAMOLEDBoth use excellent AMOLED panels, offering vibrant colors and deep blacks.
Refresh Rate120Hz165HzThe ROG Phone 7 has a smoother display for gaming and scrolling, while the Zenfone 9 provides a very smooth experience as well.
Brightness1100 nits1500 nitsThe ROG Phone 7 is significantly brighter, providing better outdoor visibility under direct sunlight.
Performance
ChipsetSnapdragon 8+ Gen 1Snapdragon 8 Gen 2The ROG Phone 7 has a newer, more powerful chipset, offering faster performance in demanding tasks and games.
AnTuTu Score1,232,5001,603,292The ROG Phone 7 has a performance advantage, indicating smoother multitasking and higher frame rates in games.
GPUAdreno 730Adreno 740The ROG Phone 7 provides better graphics performance, critical for gaming.
Camera
Standard Lens50MP (f/1.8, 1/1.56")50MP (f/1.9, 1/1.56")Both have the same main sensor with similar image quality, but the Zenfone 9 has a wider aperture.
Selfie Lens12MP (f/2.45, 1/2.93")32MP (f/2.5, 1/3.2")The ROG Phone 7 has higher resolution selfies, while the Zenfone 9’s sensor is slightly larger.
Wide Angle Lens12MP (f/2.2, 1/2.55")13MP (f/2.2, 1/3.06")The Zenfone 9 has an ultrawide lens while the ROG Phone 7 has a dedicated wide-angle lens.
Macro LensNone5MP (f/2.4, 1/5")The ROG Phone 7 includes a dedicated macro lens, while the Zenfone 9 does not.
Video Recording8K/4K up to 120fps8K/4K up to 60fpsBoth record up to 8K and 4K video; The Zenfone 9 offers 4K @ 120fps, while the ROG Phone 7 offers more stabilization
FeaturesOIS, GimbalTriple CameraThe Zenfone 9 features optical image stabilization and gimbal, while the ROG phone has a Triple Camera and more options.
Battery Life
Capacity4300mAh6000mAhThe ROG Phone 7 has a much larger battery, which should translate to significantly longer battery life.
Charging30W65WThe ROG Phone 7 charges much faster, minimizing downtime.
FeaturesNon-removableBypass Charging, Reverse charging, USB power adapter, non-removable, 10W reverse wiredThe ROG Phone 7 includes additional battery features for gamers.
Software
OSAndroid 12 (up to 14)Android 13 (up to 15)The ROG Phone 7 has a newer Android version with more up-to-date features.
Connectivity
WiFiWiFi 6WiFi 7The ROG Phone 7 is future-proof with faster WiFi 7, offering better network performance.
BluetoothBluetooth 5.2Bluetooth 5.3The ROG Phone 7 uses a newer Bluetooth version, which has performance and battery efficiency improvements.
GPSGPS, A-GPS, GLONASS, Beidou, QZSS, GalileoGPS, A-GPS, GLONASS, Beidou, QZSS, GalileoThe Zenfone 9 supports more satellite systems for better location accuracy, while the ROG Phone 7 still provides sufficient accuracy.
Storage
Internal Storage128GB/256GB256GB/512GBThe ROG Phone 7 has more storage options for larger game libraries.
RAM8GB/16GB8GB/12GB/16GBBoth offer sufficient RAM, but the ROG Phone 7 provides more flexibility with different options.
Expandable StorageNoNoNeither device supports expandable storage, so choose your storage variant wisely.
Audio
QualityHi-Res Audio, Stereo SpeakersDTS/DTS X, Hi-Res Audio, Stereo SpeakersThe ROG Phone 7 provides a slightly better audio experience with DTS/DTS X enhancements.
Security
FeaturesSide-mounted Fingerprint SensorBasic fingerprint sensorThe Zenfone 9 has a more advanced side-mounted fingerprint sensor.
Build Quality
ProtectionGorilla Glass VictusGorilla Glass VictusBoth phones are well-protected with Gorilla Glass Victus.
SensorsBiometric, Proximity, Motion, GravityBiometric, Proximity, MotionThe Zenfone 9 offers a comprehensive sensor suite, which is suitable for advanced features and gaming.

2. Key Insights

  • Asus Zenfone 9:
    • Strengths: Compact and lightweight, making it highly pocketable and easy to handle. High pixel density for a crisp display. Excellent stabilization for video. Premium build quality.
    • Competitive Advantages: Best for those who prioritize portability and one-handed use. Impressive camera stabilization features.
    • Trade-offs: Smaller screen for media consumption, and smaller battery and therefore battery life.
  • Asus ROG Phone 7:
    • Strengths: Top-tier gaming performance. Larger screen, high refresh rate, and high brightness for immersive visuals. Massive battery. Very fast charging. Advanced audio and gaming features.
    • Competitive Advantages: Unmatched for mobile gaming, offers maximum gaming features, and top of the line performance.
    • Trade-offs: Larger and heavier, may be unwieldy for some users. Significantly more expensive.

3. User Profiles and Recommendations

  • Asus Zenfone 9 User Profile:
    • Ideal For: People who value a compact design, portability, and great stabilization features. Users who want a high-performing phone that is also comfortable for everyday use.
    • Use Cases: Daily communication, social media, some light gaming, on-the-go photography, and anyone who appreciates a small form factor.
  • Asus ROG Phone 7 User Profile:
    • Ideal For: Hardcore gamers, mobile media enthusiasts, or anyone who needs maximum performance, with the best mobile experience.
    • Use Cases: Intensive gaming, watching videos, content creation, and tasks that demand the highest possible performance.

4. Buying Decision Framework

Here are three practical questions to help you decide:

  1. Do you prioritize size and portability, or screen size and immersion? If small size and easy handling is what you want, Zenfone 9 is for you. If you want maximum screen real estate, the ROG Phone 7 will be the choice.
  2. Is mobile gaming a major part of your usage? If gaming is your main use case, ROG Phone 7 is the obvious choice. If you are an average user who plays some light games, the Zenfone 9 will still suffice.
  3. What kind of battery life and charging do you require? If you want the best battery life, ROG Phone 7 is for you. If you can live with daily charges, the Zenfone 9 is still an option.

Scenario-Based Recommendations:

  • The Casual User: If you just need a daily driver with solid performance, the Zenfone 9 is a good pick for it's more compact and easier form factor for general use.
  • The Mobile Gamer: The ROG Phone 7 is built for you. It has top tier performance, battery life, and cooling for hours of intensive gaming.
  • The On-the-Go Content Creator: The Zenfone 9 may be suitable due to its great video stabilization features, but the ROG Phone 7's battery and performance will serve you well for more intensive workloads.

My Pick

Personally, I'd choose the Asus ROG Phone 7. While I appreciate the Zenfone 9's compact design, my main priority is raw performance for heavy gaming, media consumption and other intensive tasks. The larger, brighter screen with the buttery-smooth 165Hz refresh rate is an absolute joy to use. The beefy battery also eliminates any battery anxiety that I usually have when using my phone for extended periods. I'm also more comfortable with a larger phone and the extra weight is not a deal-breaker for me. The ROG Phone 7's superior audio and gaming features solidify it as the clear winner for me, even if the price is a bit higher. I'd be willing to sacrifice the slightly sharper display and advanced video stabilization of the Zenfone 9 for the ROG Phone 7's gaming and performance capabilities.

Ultimately, both phones offer unique advantages and are excellent in their respective categories, but my focus leans towards a no-compromise experience in performance and display quality which is what the ROG Phone 7 delivers best.

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.