Asus Zenfone 9 vs Samsung Galaxy M15 - Detailed Phone Comparison

Detailed Comparison

Specification

General

Launch Date September 15, 2022 April 5, 2024
Release Year 2022 2024

Physical

Volume 90.79 cm³ 114.35 cm³
Screen Size to Weight Ratio 3.49 "/g 3 "/g
Weight 169 g 217 g
Height 146.5 mm 160.1 mm
Width 68.1 mm 76.8 mm
Thickness 9.1 mm 9.3 mm
Foldable Design No No
Available Colors
  • Midnight Black
  • Starry Blue
  • Moonlight White
  • Sunset Red
  • Gray
  • Light Blue
  • Dark Blue

Display

Screen Size 5.9 " 6.5 "
Resolution 1080 x 2400 1080 x 2340
Aspect Ratio 20:9 19.5:9
Screen-to-Body Ratio 84.2 % 84.3 %
Pixel Density 445 PPI 396 PPI
Refresh Rate 120 Hz 90 Hz
Typical Brightness N/A N/A
HBM Brightness N/A 800 nits
Peak Brightness 1100 nits N/A

Hardware

Battery Capacity per Screen Area 123.53 mAh/in² 142.01 mAh/in²
Battery Density 47.36 mAh/cm³ 52.47 mAh/cm³
Battery Capacity 4300 mAh 6000 mAh
NFC Support Yes Yes
Chipset Qualcomm SM8475 Snapdragon 8+ Gen 1 (4 nm) Mediatek Dimensity 6100+ (6 nm)
CPU Octa-core (1x3.19 GHz Cortex-X2 & 3x2.75 GHz Cortex-A710 & 4x1.80 GHz Cortex-A510) Octa-core (2x2.2 GHz Cortex-A76 & 6x2.0 GHz Cortex-A55)
GPU Adreno 730 Mali-G57 MC2

Connectivity

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

Software

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

Comparison Summary

Alright, let's dive deep into this comparison between the Asus Zenfone 9 and the Samsung Galaxy M15. It's a classic battle of David versus Goliath, where raw power meets a focus on affordability and battery life. I'll break it all down for you as if we're chatting over coffee, exploring what these numbers actually mean for your daily grind.

1. Specifications Breakdown

Here's a detailed look at how these two phones stack up, with a focus on what these specs actually mean for you:

FeatureAsus Zenfone 9Samsung Galaxy M15Real-World Implications
Design
Size146.5 x 68.1 x 9.1 mm160.1 x 76.8 x 9.3 mmZenfone 9 is significantly more compact and easier to handle with one hand; M15 is noticeably larger and bulkier.
Weight169g217gZenfone 9 is much lighter and comfortable for extended use; M15 feels heavier and less portable.
Display
Size5.9"6.5"M15 provides a larger screen, better for media consumption, while the Zenfone 9 is more pocketable.
Resolution1080 x 24001080 x 2340Both are sharp enough for everyday use, with minor resolution differences that are hardly noticeable.
Pixel Density (PPI)445396Zenfone 9 has a slightly crisper display, though most eyes wouldn't see a huge difference.
TechnologyAMOLEDAMOLEDBoth offer vibrant colors and deep blacks, typical of AMOLED screens.
Refresh Rate120Hz90HzZenfone 9’s screen feels smoother for scrolling and gaming; M15 feels less fluid.
Brightness1100 nits800 nitsZenfone 9 is much more visible in bright outdoor conditions; M15 may struggle in direct sunlight.
Performance
ChipsetQualcomm Snapdragon 8+ Gen 1Mediatek Dimensity 6100+Zenfone 9 offers blazing-fast performance; M15 is sufficient for everyday tasks but struggles with demanding apps.
AnTuTu Score1,232,500442,500Zenfone 9 is drastically faster, ideal for gaming and heavy multitasking; M15 is better for basic users.
GPUAdreno 730Mali-G57 MC2Zenfone 9 handles complex graphics with ease; M15 is suited for less intensive graphic tasks.
Camera
Main Camera50MP, f/1.8, 1/1.56" IMX76650MP, f/1.8Zenfone 9 has a high-quality sensor with OIS, meaning better low-light performance, clearer pictures; M15 is basic.
Selfie Camera12MP, f/2.45, 1/2.93" IMX66313MP, f/2.0M15 has a slightly wider aperture for better selfies in low light, while Zenfone 9 boasts a higher sensor quality.
Wide Angle12MP, f/2.25MP, f/2.2Zenfone 9 offers a better ultrawide lens than M15, which has a lower-res sensor; The M15 also adds a macro lens.
Macro CameraNone2MP, f/2.4The M15 allows for taking macro shots, though the quality might not be the best. The Zenfone does not have this feature.
VideoUp to 8K@24fps with HDR and EIS, 4K@120fps1080p@30fps with EISZenfone 9 captures stunning high-resolution video; M15 is limited to standard 1080p.
Features4K/8K Video, OIS, GimbalManual FocusZenfone 9 offers better camera features, image quality, more versatile video options, while M15 has a simple camera system.
Battery Life
Capacity4300mAh6000mAhM15 has a significantly larger battery, translating to much longer battery life, even with more usage.
Charging30W Fast Charging25W Fast ChargingZenfone 9 charges slightly faster, but the M15 needs less frequent charging because of battery size.
Software
OSAndroid 12 (upgradable to 14)Android 14Samsung has the newer OS version out of the box.
Connectivity
WiFiWiFi 6 (802.11ax), Wi-Fi MiMO802.11acZenfone 9 offers faster Wi-Fi speeds and better performance in crowded networks.
GPSGPS (L1+L5), GLONASS (L1), BeiDou (B1), Galileo (E1+E5a), BeiDou (B2), NavIC System, QZSS (L1 + L5)GPS, A-GPS, GLONASS, Beidou, QZSS, GalileoZenfone 9 has much more accurate GPS.
Storage
RAM8GB/16GB4GB/6GBZenfone 9 offers more RAM for heavy use.
Internal Storage128 GB or 256 GB128GBZenfone 9 offers more base storage as well as a higher storage option.
Expandable StorageNoNoNeither device has expandable storage.
Audio
FeaturesHi-Res Audio, Noise cancellation microphone, Stereo Speakers, 3 microphones2 microphonesThe Zenfone 9 has superior audio quality.
Build Quality
Screen ProtectionCorning Gorilla Glass VictusUnknownZenfone 9 uses much more durable screen protection.
Security
Security Featuresside-mounted fingerprint sensorside-mounted fingerprint sensorBoth phones use similar fingerprint sensor technology.
SensorsBiometric: Fingerprint; Proximity: Proximity; Motion: Accelerometer, Compass, Gyroscope, Gravity, HallBiometric: Fingerprint; Motion: Accelerometer, Gyroscope; Proximity: Ultrasonic proximity virtualAsus Zenfone 9 has a wider variety of sensors.

2. Key Insights

  • Asus Zenfone 9: The Pocket Rocket
    • Strengths: This phone is all about raw power in a compact package. Its Snapdragon 8+ Gen 1 chipset delivers top-tier performance, ideal for gaming, video editing, and any demanding tasks you can throw at it. The brilliant, high-refresh-rate AMOLED display, and better quality camera, all packed in a small footprint, make it a standout performer.
    • Competitive Advantages: It excels in speed, responsiveness, and multimedia capabilities. The inclusion of a gimbal stabilizer is a significant advantage for stable video recording.
    • Trade-offs: Battery life is good but not as long-lasting as the M15, and it lacks expandable storage.
  • Samsung Galaxy M15: The Endurance Champion
    • Strengths: The M15 is designed for those who need a long-lasting battery. It has a massive 6000mAh battery, that should get you through more than a day. It’s budget-friendly, and boasts a decent AMOLED display, while providing a simple user experience.
    • Competitive Advantages: Its primary edge is its phenomenal battery life, which makes it ideal for users who are away from chargers for extended periods.
    • Trade-offs: The trade-off is in performance. The processor isn't nearly as powerful, which will be noticeable when multitasking or gaming. Also, its camera, screen, and build quality are notably inferior.

3. User Profiles and Recommendations

  • Asus Zenfone 9 is Best For:
    • Power Users and Gamers: Those who need the most processing power for demanding apps and smooth, high-fidelity gaming.
    • Multimedia Enthusiasts: Users who prioritize video and picture quality.
    • Those who prefer small form factors: Users who don't like massive phones and want something that is pocketable.
  • Samsung Galaxy M15 is Best For:
    • Budget-Conscious Users: Users who prioritize good value over high-end specs, and those that don't need top-tier performance.
    • Heavy Users with Battery Anxiety: People who need a phone that lasts more than a day without needing a charge.
    • Casual Users: People who are not demanding a lot from their phone, and don't use it for gaming or complex operations.

4. Buying Decision Framework

Here are three questions to help you decide:

  1. What's more important to you: raw performance or battery life? If speed and responsiveness are key, go for the Zenfone 9. If you need the phone to last all day (or more) with less worry about performance, choose the M15.
  2. How important is having the latest tech and highest quality camera? The Zenfone 9 has superior specs all around, including camera tech, screen quality, and faster processor.
  3. How much do you care about portability and hand feel? The Zenfone 9 is much more pocketable, while the M15 is a larger and bulkier phone that is less comfortable for prolonged single-hand use.

Scenario-Based Recommendations:

  • The Power User: If you're a gamer or someone who needs to do a lot of multitasking on the go, the Asus Zenfone 9 is the better option. Its superior processing capabilities and high-refresh-rate display will offer a smoother, more enjoyable experience, despite the battery trade-offs.
  • The Everyday Saver: If battery life is your number one concern and you only need a reliable phone for daily communication and media consumption, then Samsung Galaxy M15 is your best bet. It's more affordable and will last you much longer between charges.
  • The Casual Photographer: If you enjoy taking snapshots, then the Asus Zenfone 9 is a much better pick because of its better camera tech and features, but the M15 can take decent pictures for simple use.

My Choice

If I were to choose, I'd go with the Asus Zenfone 9. Despite the great battery life of the Samsung Galaxy M15, my personal preference is performance, a quality display and camera, which the Zenfone 9 has in spades, and this more than makes up for the difference in battery and the higher cost. I value the compact form factor, high refresh rate, and fast performance. While the M15 is a solid budget option, my usage patterns lean towards a device that can handle heavy multitasking and deliver a premium experience. The Zenfone 9's engineering is just undeniably superior and more aligned with my needs, even though it means slightly less battery life.

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.