Asus Zenfone AR (ZS571KL 256GB) vs Samsung Galaxy S25 Ultra (SM-S938B/DS 256GB)
Side by side comparison between Asus Zenfone AR vs Samsung Galaxy S25 Ultra phones, differences, pros, cons and full specifications. What's the better?
,
5.7"
AMOLED
AMOLED
1440x2560
23
MP
MP
8mp
8GB
RAM
RAM
Quad-core
3300
mAh
mAh
(Non removable)
vs
6.9"
AMOLED
AMOLED
1440x3120
200
MP
MP
12mp
12GB
RAM
RAM
Octa-core
5000
mAh
mAh
(Non removable)
What's the better phone? Samsung Galaxy S25 Ultra (SM-S938B/DS 256GB)
The phonemore's choice is much more technical than personal. Therefore, you shouldn't only consider this. Our goal is to help you, but what's important to us may not be important to you. You decide which one is the best! Comment!
6 Advantages 
32 Advantages | 24 Common items in both devices |
| 256GB (238GB available) / 256GB (223GB available) |
| Super AMOLED / LTPO AMOLED |
| 16 million |
| PDAF: phase detection autofocus / PDAF: phase detection autofocus on both cameras |
| OIS (4-axis): Optical stabilization / OIS: Optical stabilization |
| HDR photo on both cameras / HDR photo/video on both cameras |
| Capacitive |
| +17 specs and more in the table below |
Check the comparison table below for more items that are not evaluated in comparison score above.
Highlight differences Clear highlight📱 Model features | ||
| Asus Zenfone AR (ZS571KL 256GB) | Galaxy S25 Ultra (SM-S938B/DS 256GB) | |
| Model | Zenfone AR (ZS571KL 256GB) | Galaxy S25 Ultra (SM-S938B/DS 256GB) |
| Other model names | Asus Zenfone AR ZS571KL (256GB+8GB RAM) A002A, A002 | Galaxy S25 Ultra SM-S938B/Dual-SIM |
| Country or region available |  (Global, International) | (Global, International) |
| Brand | Asus | Samsung |
| Release date | 5/1/2017, Announced: 1/9/2017 | 2/3/2025, Announced: 2/22/2025 |
| Depth | 8.9 millimeters (0.35 inches) | 8.2 millimeters (0.32 inches) |
| Size (width x height) | 77.4 x 158.7 millimeters (3.05 x 6.25 in) | 77.6 x 162.8 millimeters (3.06 x 6.41 in) |
| Weight | 170 grams (5.95 ounces) | 218 grams (7.63 ounces) |
| Build, materials | Aluminum body, glass front, plastic back | Titanium frame, glass front and back Back: Gorilla Armor 2 |
| Protection against water and others | Not supported | IP68 certified: water-resistant up to 1.5 meters for 30min and dust-resistant |
📲 Display | ||
| Asus Zenfone AR (ZS571KL 256GB) | Galaxy S25 Ultra (SM-S938B/DS 256GB) | |
| Display type | Super AMOLED | LTPO AMOLED |
| Screen size | 5.7" inches | 6.9" inches |
| Screen-to-body ratio | ~72.9% (screen-to-body ratio) | ~92.5% (screen-to-body ratio) |
| Display resolution | 1440x2560 pixels (16:9) | 1440x3120 pixels (19.5:9) |
| Touchscreen | Capacitive Multitouch 10-points | Capacitive Multitouch 10-points |
| Pixel density (dot pitch) | 515 PPI | 498 PPI |
| Colors | 16 million | 16 million |
| Scratch-resistant glass | Gorilla Glass 4 | Gorilla Armor 2 |
| Refresh rate | 60Hz | 120Hz |
| Display features | Not supported | 2600nits[peak] HDR10+ Always-On Display |
🤖 Operating System | ||
| Asus Zenfone AR (ZS571KL 256GB) | Galaxy S25 Ultra (SM-S938B/DS 256GB) | |
| System version | Android 7.0 Nougat | Android 15 |
| Firmware update | feature not registered | Android 16 |
| User Interface | ZenUI 3.0 | One UI 7.0 |
⚙️ Processor | ||
| Asus Zenfone AR (ZS571KL 256GB) | Galaxy S25 Ultra (SM-S938B/DS 256GB) | |
| Chipset | 64bit: Qualcomm Snapdragon 821 MSM8996 (14nm) | 64bit: Qualcomm Snapdragon 8 Elite (SM8750-AC) (3nm) |
| CPU | Quad-core, 2 processors: 2x 2.35GHz Kryo (Dual-core) 2x 1.6GHz Kryo (Dual-core) | Octa-core, 2 processors: 2x 4.47GHz Oryon V2 Phoenix L (Dual-core) 6x 3.53GHz Oryon V2 Phoenix M (Hexa-core) |
| GPU graphical controller | Qualcomm Adreno 530 650Mhz | Qualcomm Adreno 830 (1200MHz) |
| Performance (benchmark) | feature not registered | AnTuTu: 2207809 (v10) Geekbench: 9846 (v6) |
💽 Memory and storage | ||
| Asus Zenfone AR (ZS571KL 256GB) | Galaxy S25 Ultra (SM-S938B/DS 256GB) | |
| RAM memory | 8GB LPDDR4 | 12GB LPDDR5X |
| Internal storage | 256GB (238GB available) UFS 2.0 | 256GB (223GB available) UFS 4.0 |
| External storage | Until 1TB microSD, microSDXC (dedicated slot) | Not supported |
📶 Mobile networks | ||
| Asus Zenfone AR (ZS571KL 256GB) | Galaxy S25 Ultra (SM-S938B/DS 256GB) | |
| Dual-SIM | Dual-SIM Standby - Call active on one sim card (dedicated slot) | Dual-SIM Standby - Call active on one sim card |
| SIM card | 2 slots (Dual-SIM) nano-SIM (4FF) | 2 slots (Dual-SIM) nano-SIM (4FF) + e-SIM |
| Maximum Download / Upload | 600/75 Mbps | 5000/1024 Mbps |
| Network technology | 2G, 3G, 4G | 2G, 3G, 4G, 5G |
| Frequency, bands | Expand band details Collapse details | |
| GSM MHz band | Quad-Band 850/900/1800/1900 | Quad-Band 850/900/1800/1900 |
| Primary 2G network | GSM 850/900/1800/1900 | CDMA 800/1900, GSM 850/900/1800/1900 |
| Primary 3G network | Global version: UMTS 800/850/900/1900/2100 America version: UMTS 850/900/1700/1900/2100 | CDMA2000 1xEV-DO TD-SCDMA 1900/2000 UMTS |
| Primary 4G network | LTE Cat12 VoLTE Global version: LTE (Bands 1, 2, 3, 5, 7, 8, 18, 19, 20, 26, 28) TD-LTE (Bands 38, 40, 41) America version: LTE (Bands 1, 2, 3, 4, 5, 7, 12, 13, 20, 29) | LTE Cat24 () TD-LTE () VoLTE |
| Primary 5G network | Not supported | SA/NSA/Sub6 () |
| Primary data network | GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A | GPRS, EDGE, CDMA2000 EV-DO Rev 0, CDMA2000 EV-DO Rev A, TD-SCDMA, UMTS, TD-HSDPA, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A, SA/NSA, Sub6 |
| Secondary 2G network | GSM 850/900/1800/1900 | CDMA 800/1900, GSM 850/900/1800/1900 |
| Secondary 3G network | UMTS 850/900/1900/2100 | CDMA2000 1xEV-DO TD-SCDMA 1900/2000 UMTS |
| Secondary 4G network | Not supported | LTE Cat24 () TD-LTE () VoLTE |
| Secondary data network | GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+ | GPRS, EDGE, CDMA2000 EV-DO Rev 0, CDMA2000 EV-DO Rev A, TD-SCDMA, UMTS, TD-HSDPA, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A, SA/NSA, Sub6 |
📷 Camera | ||
| Asus Zenfone AR (ZS571KL 256GB) | Galaxy S25 Ultra (SM-S938B/DS 256GB) | |
| Back camera (main camera) | 23 megapixels | (quad camera) 200 megapixels 10MP telephoto f/2.467mm1/3.52"1.12µmPDAFOIS3x-optical-zoom 50MP periscope telephoto f/3.4111mm1/2.52"0.7µmPDAFOIS5x-optical-zoom 50MP ultrawide f/1.9120°0.7µmPDAFSuper-Steady |
| Main camera resolution | 5536x4152 pixels | 20000x10000 pixels |
| Video recording (primary) | 4K UHD (3840x2160) 30 fps | 8K UHD (7680x4320) 30 fps |
| Flash | Dual-LED flash | LED flash |
| Focal aperture | f/2.0 (aperture) | f/1.7 (aperture) |
| Focal length | 27mm (lens) | 24mm (lens) |
| Sensor size | 1/2.6" inches | 1/1.3" inches |
| Pixel size | 1µm pixel | 0.6µm pixel |
| Autofocus | PDAF: phase detection autofocus | PDAF: phase detection autofocus on both cameras |
| Touch focus | Supported | Supported |
| Image stabilization | OIS (4-axis): Optical stabilization | OIS: Optical stabilization |
| Zoom | Only digital zoom | Digital and optical zoom |
| Face/smile detection | Face detection, Smile detection | Face detection, Smile detection |
| BSI sensor | Not supported | Supported |
| HDR | HDR photo on both cameras | HDR photo/video on both cameras |
| Camera extras | Motion tracking sensors | 8K@24/30fps 4K@30/60fps 1080p@30/60/120/240fps 10-bit HDR10+ |
📸 Front camera | ||
| Asus Zenfone AR (ZS571KL 256GB) | Galaxy S25 Ultra (SM-S938B/DS 256GB) | |
| Front camera (secondary) | 8 megapixels | 12 megapixels |
| Front camera resolution | 3264x2448 pixels | 4000x3000 pixels |
| Video recording (secondary) | Full HD (1920x1080) | 4K UHD (3840x2160) |
| Front flash | Not supported | Not supported |
| Focal aperture | f/2.0 (aperture) | f/2.2 (aperture) |
| Focal length | feature not registered | 26mm (lens) |
| Sensor size | 1/4" inches | 1/3.2" inches |
| Pixel size | 1.12µm pixel | 1.12µm pixel |
🔉 Sound and multimedia | ||
| Asus Zenfone AR (ZS571KL 256GB) | Galaxy S25 Ultra (SM-S938B/DS 256GB) | |
| Loudspeaker | Mono sound (not stereo) Hi-Res audio | Stereo sound 32-bit/384kHz Tuned by AKG |
| Active noise cancellation | 2 microphones or more | 3 microphones |
| Radio | FM | Not supported |
| TV | Not supported | Not supported |
| Video formats | MP4, H.264, H.263, XviD, MKV | MP4, H.265, H.264, H.263, XviD, MKV |
| Audio formats | MP3, WAV, WMA, eAAC+, FLAC | MP3, WAV, WMA, eAAC+, FLAC |
🔌 Connectivity | ||
| Asus Zenfone AR (ZS571KL 256GB) | Galaxy S25 Ultra (SM-S938B/DS 256GB) | |
| USB | USB 2.0 Type-C, USB OTG On-The-Go | USB 3.2 Type-C, USB OTG On-The-Go |
| Audio output | 3.5mm jack | Type-C reversible connector |
| TV output | Not supported | USB Type-C (reversible) |
| Bluetooth | 4.2 + A2DP | 5.4 + A2DP/LE |
| WiFi | 802.11 a/b/g/n/ac [wifi5] (2.4GHz, 5GHz) WiFi Direct, hotspot | 802.11 a/b/g/n/ac/ax/be [wifi7/6E/6] (2.4GHz, 5GHz, 6GHz) + MIMO WiFi Direct, hotspot |
| DLNA | Not supported | Supported |
| GPS | A-GPS, GeoTagging, GLONASS, BeiDou | A-GPS, GeoTagging, GLONASS, GALILEO, BeiDou, QZSS |
| NFC | Not supported | Supported |
| Infrared port | Not supported | Not supported |
🧭 Sensors | ||
| Asus Zenfone AR (ZS571KL 256GB) | Galaxy S25 Ultra (SM-S938B/DS 256GB) | |
| Sensors | Accelerometer Ambient light sensor Barometer Compass Face unlock 2D Fingerprint sensor (front-mounted) Gyroscope Hall effect Proximity sensor | Accelerometer Ambient light sensor Barometer Compass Face unlock 2D Fingerprint sensor (under display) Gyroscope Hall effect Proximity sensor UWB (Ultra Wideband) |
| Vibrating alert | Supported | Supported |
🔋 Battery | ||
| Asus Zenfone AR (ZS571KL 256GB) | Galaxy S25 Ultra (SM-S938B/DS 256GB) | |
| Battery type | Li-Ion: lithium-ion (Non removable) | Li-Ion: lithium-ion (Non removable) |
| Battery capacity | 3300 mAh | 5000 mAh |
| Charger, watts | 18W (9V/2A) Wired fast charging Quick Charge 3 | 45W Wired fast charging Reverse charging by cable USB Power Delivery 3.0 |
| Inductive / wireless charging | Not supported | 15W Qi wireless charging 4.5W Reverse wireless charging |
| Talk time autonomy | feature not registered | feature not registered |
| Standby | feature not registered | feature not registered |
➕ Other features | ||
| Asus Zenfone AR (ZS571KL 256GB) | Galaxy S25 Ultra (SM-S938B/DS 256GB) | |
| Call control | Voice dialing, Voice recorder, Voice commands | Voice dialing, Voice recorder, Voice commands |
| Messaging | SMS (T9), MMS, E-mail, Push mail | SMS (T9), MMS, E-mail, Push mail |
| Hands-free calling | Supported | Supported |
| Video calling | Supported | Supported |
| Ringtones | Polyphonic and customized | Polyphonic and customized |
| Web browser | HTML, XHTML, HTML5 | HTML, XHTML, HTML5 |
| Antenna | Internal antenna | Internal antenna |
| Qwerty physical keyboard | Not supported | Not supported |
| Miscellaneous | • Colors: Black • Tango and Daydream by Google | • Samsung DeX • Samsung Wireless DeX • Stylus (S Pen) • Circle to Search |
☢️ Radiation rate | ||
| Asus Zenfone AR (ZS571KL 256GB) | Galaxy S25 Ultra (SM-S938B/DS 256GB) | |
| SAR 1.6W/kg (USA, Mexico, etc.) | feature not registered | feature not registered |
| SAR 2W/kg (Europe, UK, etc.) | feature not registered | feature not registered |