In depth comparison and review of ASUS Zenfone 8 and Apple iPhone 15. Compare sizes, cameras, batteries, memory, and other important specifications and features to easily choose the right phone for you. Our goal is to help you uncover differences between the products and find the phone that will best fit your needs.
| DESIGN AND DIMENSIONS | ASUS Zenfone 8 | Apple iPhone 15 |
|---|
| Product Type | Smartphone | Smartphone | |
|---|---|---|---|
| Manufacturer Model Number | ZS590KS | A3090 | |
| Form Factor | Touch | Touch | |
| Height | 148 mm | 147.6 mm | ASUS Zenfone 8 has greater height than Apple iPhone 15. |
| Width | 68.5 mm | 71.6 mm | Apple iPhone 15 has greater width than ASUS Zenfone 8. |
| Depth | 8.9 mm | 7.8 mm | Apple iPhone 15 is narrower than ASUS Zenfone 8. |
| Weight | 169 g | 171 g | ASUS Zenfone 8 is lighter than ASUS Zenfone 8. |
| Body Colour | Obsidian black | Black | Pink | Yellow | Blue | Green | |
| Body Material | - | Glass, aerospace-grade aluminium | |
| Protection | Drop-proof, water-resistant, dust-resistant | Water-resistant, splash-resistant, dust-resistant | |
| Waterproof (Water-resistant) | Yes | Yes | Both phones are waterproof. |
| IP rating | IP68, IP65 | IEC 60529 IP68 | |
| Repairability Index | - | 7.5 (out of 10) | |
| SAR Value | 1.582 W/kg (body), 1.412 W/kg (head), 3.498 W/kg (limb) | - | |
| Integrated Components | FM radio | - | |
| Connector Type | USB Type-C - 24 pin USB-C Headset jack - mini-phone 3.5mm |
USB Type-C - 24 pin USB-C | |
| SIM Card Type (Size) | Nano SIM | Nano SIM, Electronic SIM card (e-SIM) | |
| SIM Card Qty | Dual-SIM | Dual-SIM |
| DISPLAY | ASUS Zenfone 8 | Apple iPhone 15 |
|---|
| Display Type | OLED display | OLED display | |
|---|---|---|---|
| Display Technology | AMOLED | Super Retina XDR Display | |
| Screen Size (Display Size) | 5.9" | 6.1" | Apple iPhone 15 has larger screen size than ASUS Zenfone 8. |
| Screen Resolution (Display Resolution) | 2400 x 1080 pixels | 2556 x 1179 pixels | Apple iPhone 15 has better screen resolution than ASUS Zenfone 8. |
| Display Format | Full HD+ | - | |
| Pixel Density | - | 460 ppi | |
| Aspect Ratio | 20:9 | - | |
| Max Brightness | 1100 cd/m² | 1000 cd/m² | ASUS Zenfone 8 has better display brightness than Apple iPhone 15. |
| Contrast Ratio | - | 2000000:1 | |
| HDR | Yes | Yes | Both phones have HDR. |
| HDR Technology | HDR10+ | HDR10 | |
| Display Enhancement Technology | DC Dimming | Dolby Vision | |
| Display Refresh Rate | 120 Hz | - | |
| Touch Sampling Rate | 240 Hz | - | |
| Display Features | Always-on display, Glove Touch, Delta-E < 1, 107% NTSC, 151.9% sRGB, 112% DCI-P3 | True Tone display, Wide colour display (P3), All Screen Display, Haptic touch, Hybrid Log-Gamma (HLG), Dynamic Island, 1600 nits max brightness (HDR), 2000 nits max brightness (outdoor) | |
| Display Protection (Screen Protector) | Corning Gorilla Glass Victus (scratch resistant glass) | Fingerprint-resistant oleophobic coating, Ceramic Shield |
| PROCESSOR | ASUS Zenfone 8 | Apple iPhone 15 |
|---|
| Processor Type (CPU) | Qualcomm Snapdragon 888 5G | Apple A16 Bionic | |
|---|---|---|---|
| Clock Speed | 2.842 GHz | - | |
| Processor Core Qty | 8-core | 6-core | ASUS Zenfone 8 has higher processor core quantity than Apple iPhone 15. |
| Graphics System (GPU) | Qualcomm ADRENO 660 | - |
| MEMORY | ASUS Zenfone 8 | Apple iPhone 15 |
|---|
| RAM | LPDDR5 SDRAM - 8 GB | - | |
|---|---|---|---|
| Internal Memory Size (Storage Capacity) | 128 GB | 128 GB | Both phones have the same internal memory capacity. |
| Memory Interface | UFS 3.1 | - |
| CAMERA | ASUS Zenfone 8 | Apple iPhone 15 |
|---|
| MAIN CAMERA |
|---|
| Number of Main Cameras | 2 | 2 | |
|---|---|---|---|
| Sensor Resolution | 64 Megapixel | 48 Megapixel | ASUS Zenfone 8 has better camera resolution than Apple iPhone 15. |
| Sensor Size | 1/1.7" | - | |
| Sensor Name | Sony Exmor RS IMX686 sensor | - | |
| Lens Type | Wide-angle lens | - | |
| Lens Aperture | F/1.8 | F/1.6 | Apple iPhone 15 has better lens aperture than ASUS Zenfone 8. |
| Field of View (FoV) | 78.3 degree(s) | - | |
| Pixel Size | 1.6 μm | 2 μm | Apple iPhone 15 has larger camera pixel size than ASUS Zenfone 8. |
| Optical Image Stabiliser (OIS) | Optical Image Stabiliser (OIS) | Sensor-shift OIS (Optical Image Stabilisation) | Both phones have optical image stabilization. |
| Focus Adjustment | - | Automatic | |
| Minimum Focal Length (Focal Distance) | 26.6 mm | 26 mm | |
| Optical Zoom | - | 2x | |
| Digital Zoom | - | 10x | |
| Special Effects | - | Photographic Styles | |
| HDR Mode | - | Smart HDR 5 | |
| Camera Modes | Slow motion video, Time-lapse mode, Pro mode | Burst mode, slow motion video, Panorama, Time-lapse mode, night mode, Live Photos, Portrait Lighting, wide colour capture for photos and Live Photos, Cinema mode, Macro video, Time Lapse (Night mode) | |
| Face Recognition (Face ID) | - | Face recognition | Apple iPhone 15 has face detection. |
| Light Source | LED flash | True Tone LED flash | |
| Video Resolutions | 1920 x 1080 (1080p) at 30 fps, 1920 x 1080 (1080p) at 60 fps, 1280 x 720 (720p) at 30 fps, 3840 x 2160 (4K) at 30 fps, 3840 x 2160 (4K) at 60 fps, Slo-mo video 1920 x 1080 (1080p) at 240 fps, Slo-mo video 1280 x 720 (720p) at 480 fps, 7680 x 4320 (8K) at 24 fps, Slo-mo video 3840 x 2160 (4K) at 120 fps | 1920 x 1080 (1080p) at 30 fps, 1920 x 1080 (1080p) at 60 fps, 1280 x 720 (720p) at 30 fps, Slo-mo video 1920 x 1080 (1080p) at 120 fps, 3840 x 2160 (4K) at 30 fps, 3840 x 2160 (4K) at 60 fps, 3840 x 2160 (4K) at 24 fps, 1920 x 1080 (1080p) at 25 fps, Slo-mo video 1920 x 1080 (1080p) at 240 fps, 3840 x 2160 (4K) at 25 fps | |
| Camera Features (Functions) | Phase Detect Auto-Focus (PDAF), 3-axis electronic image stabilisation, 4-axis optical image stabilisation, Motion tracking, Quad Bayer technology, 2x1 On-Chip Lens (OCL) | Sapphire crystal lens cover, Cinematic video stabilisation, Cinematic video stabilisation, Playback zoom, geotagging, Stereo Recording, Continuous autofocus video, 8MP still photos recording 4K video, Time‑lapse video with stabilisation, Advanced red-eye correction, Panorama (up to 63MP), HEIF image capture, Audio zoom, 100% Focus Pixels, Digital zoom up to 3x for video, QuickTake video, HEVC (High Efficiency Video coding), Deep Fusion, Sensor-shift optical image stabilisation for video, Digital zoom up to 6x for video, Dolby Vision HDR video recording up to 4K at 60 fps, 2x optical zoom out, Cinematic mode up to 4K HDR at 30 fps, Action mode up to 2.8K at 60 fps, Photonic Engine, 4x optical zoom range, 2x optical zoom in |
| SECOND CAMERA |
|---|
| Sensor Resolution (2nd Camera) | 12 Megapixel | 12 Megapixel | Both phones have the same second camera resolution. |
|---|---|---|---|
| Sensor Size (2nd Camera) | 1/2.55" | - | |
| Sensor Name (2nd Camera) | Sony Exmor RS IMX363 sensor | - | |
| Lens Type (2nd Camera) | Ultra wide-angle lens | Ultra wide-angle lens | |
| Lens Aperture (2nd Camera) | F/2.2 | F/2.4 | ASUS Zenfone 8 has better second camera lens aperture than ASUS Zenfone 8. |
| Field of View (2nd Camera) | - | 120 degree(s) | |
| Pixel Size (2nd Camera) | 1.4 μm | - | |
| Minimum Focal Length (2nd Camera) | - | 13 mm | |
| Focal Length Equivalent to 35mm Camera | 14.3 | - | |
| Camera Features (2nd Camera) | Real-time distortion correction, 4cm macro photography, Dual Phase Detect Auto-Focus (PDAF) | Lens correction, 100% Focus Pixels, Quad Pixel sensor |
| FRONT CAMERA |
|---|
| Number of Front Cameras | 1 | 1 | |
|---|---|---|---|
| Sensor Resolution (Front) | 12 Megapixel | 12 Megapixel | Both phones have the same front camera resolution. |
| Sensor Name (Front) | Sony Exmor RS IMX663 sensor | - | |
| Lens Aperture (Front) | F/2.4 | F/1.9 | Apple iPhone 15 has better front lens aperture than ASUS Zenfone 8. |
| Pixel Size (Front) | 1.22 μm | - | |
| Focus Adjustment | Automatic | Automatic | |
| Special Effects (Front) | - | Photographic Styles | |
| HDR Mode (Front) | - | Smart HDR 5 | |
| Camera Modes (Front) | Portrait | Burst mode, night mode, portrait mode, Live Photos, Portrait Lighting, wide colour capture for photos and Live Photos, Time Lapse (Night mode) | |
| Face Recognition (Face ID) | - | Face recognition | Apple iPhone 15 has face detection. |
| Light Source (Front) | - | Retina Flash | |
| Video Resolutions (Front) | - | 1920 x 1080 (1080p) at 30 fps, 1920 x 1080 (1080p) at 60 fps, Slo-mo video 1920 x 1080 (1080p) at 120 fps, 3840 x 2160 (4K) at 30 fps, 3840 x 2160 (4K) at 60 fps, 3840 x 2160 (4K) at 24 fps, 1920 x 1080 (1080p) at 25 fps, 3840 x 2160 (4K) at 25 fps | |
| Camera Features (Front) | Dual Pixel technology, EIS video stabilisation, Dual Phase Detect Auto-Focus (PDAF) | Auto image stabilisation, Animoji, Memoji, TrueDepth camera, Cinematic video stabilisation, QuickTake video, Time‑lapse video with stabilisation, Lens correction, Deep Fusion, Dolby Vision HDR video recording up to 4K at 60 fps, Autofocus with Focus Pixels, Photonic Engine, Cinematic mode up to 4K HDR at 30 fps |
| BATTERY AND CHARGING | ASUS Zenfone 8 | Apple iPhone 15 |
|---|
| Battery Capacity (Battery Size) | 4000 mAh | - | |
|---|---|---|---|
| Fast Charging Technology | Qualcomm Quick Charge 4.0, Power Delivery 3.0 | Apple MagSafe wireless charging | Both phones have fast charging technology. |
| Wireless Charging | - | Yes | Apple iPhone 15 can be charged wirelessly. |
| Wireless Charging Standards | - | Qi | |
| Run Time Details | - | Playback (video): up to 20 hrs Playback (streamed video): up to 16 hrs Playback (audio): up to 80 hrs |
|
| Battery Technology | - | Lithium Ion |
| CELLULAR | ASUS Zenfone 8 | Apple iPhone 15 |
|---|
| Technology | WCDMA (UMTS) / GSM | WCDMA (UMTS) / GSM | |
|---|---|---|---|
| Mobile Broadband Generation | 5G | 5G | Both phones have the same mobile network generation. |
| Operating System | Android 11 | iOS 17 | |
| User Interface | ASUS ZenUI 8.0 | - | |
| Intelligent Assistant | - | Siri | |
| Payment Technology | - | Apple Pay | |
| Navigation | GPS, GLONASS, BeiDou, Galileo, QZSS, NavIC | GPS, GLONASS, BeiDou, Galileo, QZSS |
| COMMUNICATIONS | ASUS Zenfone 8 | Apple iPhone 15 |
|---|
| Data Transmission | GPRS, EDGE, HSPA+, FDD-LTE, TDD-LTE, DC-HSPA+, Gigabit LTE, 5G NR FR1 | EDGE, HSPA+, DC-HSDPA, VoLTE, FDD-LTE, Gigabit LTE, LAA, 5G NR FR1, TD-LTE | |
|---|---|---|---|
| 2G Band | 850 GSM, 900 GSM, 1800 GSM, 1900 GSM | 850 GSM, 900 GSM, 1800 GSM, 1900 GSM | |
| 3G UMTS Band | Band 1, Band 2, Band 3, Band 4, Band 5, Band 6, Band 8, Band 19 | Band 1, Band 2, Band 5, Band 8, Band 10 | |
| 3G UMTS Frequency | 2100, 1900, 1800, 1700, 850, 800, 900, 800 | 2100, 1900, 850, 900, 1700 EAWS | |
| 4G LTE Band | Band 1, Band 2, Band 3, Band 4, Band 5, Band 7, Band 8, Band 12, Band 17, Band 18, Band 19, Band 20, Band 26, Band 28, Band 34, Band 38, Band 39, Band 40, Band 41, Band 42 | Band 1, Band 2, Band 3, Band 4, Band 5, Band 7, Band 8, Band 12, Band 13, Band 17, Band 18, Band 19, Band 20, Band 25, Band 26, Band 28, Band 30, Band 32, Band 34, Band 38, Band 39, Band 40, Band 41, Band 42, Band 46, Band 48, Band 66, Band 53 | |
| 4G LTE Frequency | FDD 2100, FDD 1900 PCS, FDD 1800+, FDD 1700 - 2110 AWS, FDD 850, FDD 2600, FDD 900, FDD 700a, FDD 700b, FDD 800 lower, FDD 800 upper, FDD 800 DD, FDD 850+, FDD 700 APT, TDD 2000, TDD 2600, TDD 1900, TDD 2300, TDD 2500, TDD 3500 | FDD 2100, FDD 1900 PCS, FDD 1800+, FDD 1700 - 2110 AWS, FDD 850, FDD 2600, FDD 900, FDD 700a, FDD 700c, FDD 700b, FDD 800 lower, FDD 800 upper, FDD 800 DD, FDD 1900+, FDD 850+, FDD 700 APT, FDD 2300 WCS, FDD 1500 L, TDD 2000, TDD 2600, TDD 1900, TDD 2300, TDD 2500, TDD 3500, TDD 5150, TDD 3600, FDD 1700 - 2110 AWS-3, Band 53 | |
| 5G NR Band | N1, n2, n3, n5, n7, n8, n20, n28, n38, n77, n78, n12 | N1, n2, n3, n5, n7, n8, n20, n28, n38, n41, n66, n70, n77, n78, n79, n40, n25, n12, n48, n26, n30, n53 | |
| 5G NR Frequency | FDD 2100, FDD 1900PCS, FDD 1800, FDD 850, FDD 2600, FDD 900, FDD 800, FDD 700APT, TDD TD 2600, TDD TD 3700, TDD TD 3500, n12 | FDD 2100, FDD 1900PCS, FDD 1800, FDD 850, FDD 2600, FDD 900, FDD 800, FDD 700APT, TDD TD 2600, TDD TD 2500, FDD AWS-3, FDD AWS-4, TDD TD 3700, TDD TD 3500, TDD TD 4500, TDD 2300, FDD 1900, n12, TDD 3500, FDD 850, FDD 2300, n53 | |
| Wireless Interface | IEEE 802.11a/b/g/n/ac/ax | IEEE 802.11ax | |
| Bluetooth | Bluetooth 5.2 EDR | Bluetooth 5.3 | |
| Bluetooth Profiles | HFP, OPP, PAN, A2DP, AVRCP, HID | - | |
| NFC | Yes | Yes | Both phones have an NFC reader for mobile payments. |
| Ultra-Wideband (UWB) | - | Yes | Apple iPhone 15 has UWB wireless technology. |
| Modem | Snapdragon X60 5G | - |
| MEDIA | ASUS Zenfone 8 | Apple iPhone 15 |
|---|
| Supported Digital Audio Standards | - | AAC, MP3, FLAC, Apple Lossless, Dolby Atmos, Dolby Digital, Dolby Digital Plus | |
|---|---|---|---|
| Supported Digital Video Standards | - | H.264, HEVC, ProRes | |
| Sound Enhancements | Dirac HD Sound, ASUS Audio Wizard, Hi-Res audio certified, OZO Audio, Qualcomm aptX audio, Qualcomm aptX HD audio, Qualcomm aptX Adaptive | Dolby Digital Plus sound, Dolby Atmos sound technology, Dolby Digital sound, Spatial audio | |
| Video Enhancements | - | HDR with Dolby Vision, HDR10, Hybrid Log-Gamma (HLG) | |
| Audio Amplifier | Dual Cirrus Logic CS35L45 | - |
| FEATURES | ASUS Zenfone 8 | Apple iPhone 15 |
|---|
| Sensors | Accelerometer, ambient light sensor, proximity sensor, digital compass, G-sensor, gyroscope | Accelerometer, proximity sensor, digital compass, barometer, magnetometer, dual ambient light sensor, gyroscope with high dynamic range | |
|---|---|---|---|
| Security Devices | Fingerprint reader (under display), face recognition | Face recognition | |
| Security Technology | - | Face ID | |
| Additional Phone Features | MIMO technology, AudioWizard, One Hand Mode, ARCore, Triple internal microphones with ASUS Noise Reduction Technology, Multi-Magnet Stereo Speakers | MIMO technology, Wi-Fi Calling, iBeacon microlocation, QuickType keyboard, Apple TV support (2nd or later), AirPlay 2 wireless streaming, FaceTime audio, Apple MagSafe, Express Transit cards with power reserve, 4K HDR AirPlay Mirroring, FaceTime HD (1080p), RTT/TTY compatible, Voice isolation, 16‑core Neural Engine, Zoom with rear-facing camera, Wide Spectrum microphone mode, SharePlay, Screen sharing, Portrait mode in FaceTime video, Dual eSIM support, FaceTime call with SharePlay, Crash Detection, magnet array, alignment magnet, accessory identification NFC, Emergency SOS via satellite, StandBy, second-generation Ultra Wideband chip |
| OTHERS | ASUS Zenfone 8 | Apple iPhone 15 |
|---|
| Included Accessories | SIM card removal tool, USB-C to USB-C cable, protective case, power adapter (30 W) | USB-C to USB-C cable (1 m) | |
|---|---|---|---|
| Compliant Standards | IP68, IP65, SGS Eye Care Display Certification, SGS Seamless Pro 120Hz Certification | IEC 60529 IP68, BFR-free, PVC-free, Beryllium-free, Mercury-free, HEARING AID M3/T4, Arsenic-free | |
| EPEAT Compliant | - | Yes | |
| EPEAT Level | - | EPEAT Gold | |
| Carbon Footprint | - | 56 kg carbon emissions | |
| Product Recycled Content | - | 23 % - recycled or renewable content | |
| Max Depth of Water Resistance | - | 6 m | |
| Max Height of Shock Resistance | 2 m | - | |
| Max Operating Temperature | - | 35 °C | |
| Min Operating Temperature | - | 0 °C | |
| Humidity Range Operating | - | 5 - 95% (non-condensing) |
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