Oppo Reno4 Z 5G vs Samsung Galaxy S25 Ultra (SM-S938B/DS 256GB)
Side by side comparison between Oppo Reno4 Z 5G vs Samsung Galaxy S25 Ultra phones, differences, pros, cons and full specifications. What's the better?
,
6.57"
IPS
IPS
1080x2400
48
MP
MP
16mp
8GB
RAM
RAM
Octa-core
4000
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!
4 Advantages 
30 Advantages | 25 Common items in both devices |
| 120Hz |
| 16 million |
| LED flash |
| PDAF: phase detection autofocus / PDAF: phase detection autofocus on both cameras |
| HDR photo on both cameras / HDR photo/video on both cameras |
| f/1.7 (aperture) |
| 5G SA/NSA / 5G Sub6 |
| +18 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 | ||
| Oppo Reno4 Z 5G | Galaxy S25 Ultra (SM-S938B/DS 256GB) | |
| Change model | ||
| Model | Reno4 Z 5G | Galaxy S25 Ultra (SM-S938B/DS 256GB) |
| Other model names | Oppo Reno 4 Z 5G CPH2065 | Galaxy S25 Ultra SM-S938B/Dual-SIM |
| Country or region available |  (Global, International) | (Global, International) |
| Brand | Oppo | Samsung |
| Release date | 10/15/2020, Announced: 9/29/2020 | 2/3/2025, Announced: 2/22/2025 |
| Depth | 8.1 millimeters (0.32 inches) | 8.2 millimeters (0.32 inches) |
| Size (width x height) | 75.5 x 163.8 millimeters (2.97 x 6.45 in) | 77.6 x 162.8 millimeters (3.06 x 6.41 in) |
| Weight | 184 grams (6.44 ounces) | 218 grams (7.63 ounces) |
| Build, materials | Plastic body, glass front | 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 | ||
| Oppo Reno4 Z 5G | Galaxy S25 Ultra (SM-S938B/DS 256GB) | |
| Display type | LTPS IPS LCD | LTPO AMOLED |
| Screen size | 6.57" inches | 6.9" inches |
| Screen-to-body ratio | ~84.3% (screen-to-body ratio) | ~92.5% (screen-to-body ratio) |
| Display resolution | 1080x2400 pixels (20:9) | 1440x3120 pixels (19.5:9) |
| Touchscreen | Capacitive Multitouch | Capacitive Multitouch 10-points |
| Pixel density (dot pitch) | 401 PPI | 498 PPI |
| Colors | 16 million | 16 million |
| Scratch-resistant glass | Gorilla Glass 3 | Gorilla Armor 2 |
| Refresh rate | 120Hz | 120Hz |
| Display features | 480nits[typ] | 2600nits[peak] HDR10+ Always-On Display |
🤖 Operating System | ||
| Oppo Reno4 Z 5G | Galaxy S25 Ultra (SM-S938B/DS 256GB) | |
| System version | Android 10 | Android 15 |
| Firmware update | feature not registered | feature not registered |
| User Interface | feature not registered | One UI 7.0 |
⚙️ Processor | ||
| Oppo Reno4 Z 5G | Galaxy S25 Ultra (SM-S938B/DS 256GB) | |
| Chipset | 64bit: MediaTek Dimensity 800 MT6873V (7nm) | 64bit: Qualcomm Snapdragon 8 Elite (SM8750-AB) (3nm) |
| CPU | Octa-core, 2 processors: 4x 2GHz ARM Cortex-A76 (Quad-core) 4x 2GHz ARM Cortex-A55 (Quad-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 | ARM Mali-G57 MC4 | Qualcomm Adreno 830 (1100MHz) |
| Performance (benchmark) | feature not registered | AnTuTu: 2207809 (v10) Geekbench: 9846 (v6) |
💽 Memory and storage | ||
| Oppo Reno4 Z 5G | Galaxy S25 Ultra (SM-S938B/DS 256GB) | |
| RAM memory | 8GB LPDDR4X | 12GB LPDDR5X |
| Internal storage | 128GB (108GB available) UFS 2.1 | 256GB (223GB available) UFS 4.0 |
| External storage | Not supported | Not supported |
📶 Mobile networks | ||
| Oppo Reno4 Z 5G | Galaxy S25 Ultra (SM-S938B/DS 256GB) | |
| Dual-SIM | Dual-SIM Standby - Call active on one sim card | 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 | 3500/1920 Mbps | 5000/1024 Mbps |
| Network technology | 2G, 3G, 4G, 5G | 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 | UMTS 850/900/1700/1900/2100 | CDMA2000 1xEV-DO TD-SCDMA 1900/2000 UMTS |
| Primary 4G network | LTE Cat6 (1, 2, 3, 4, 5, 7, 8, 12, 17, 18, 19, 20, 26, 28, 66) TD-LTE (38, 39, 40, 41) VoLTE | LTE Cat24 () TD-LTE () VoLTE |
| Primary 5G network | SA/NSA (1, 3, 5, 7, 8, 20, 28, 38, 40, 41, 77, 78) | SA/NSA/Sub6 () |
| Primary data network | GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A, SA/NSA | 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 | Not supported | CDMA2000 1xEV-DO TD-SCDMA 1900/2000 UMTS |
| Secondary 4G network | Not supported | LTE Cat24 () TD-LTE () VoLTE |
| Secondary data network | GPRS, EDGE | 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 | ||
| Oppo Reno4 Z 5G | Galaxy S25 Ultra (SM-S938B/DS 256GB) | |
| Back camera (main camera) | (quad camera) 48 megapixels 8MP ultrawide f/2.2119°1/4.0"1.12µm 2MP depth f/2.4 2MP depth f/2.4 | (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 | 8000x6000 pixels | 20000x10000 pixels |
| Video recording (primary) | 4K UHD (3840x2160) 30 fps | 8K UHD (7680x4320) 30 fps |
| Flash | LED flash | LED flash |
| Focal aperture | f/1.7 (aperture) | f/1.7 (aperture) |
| Focal length | 26mm (lens) | 24mm (lens) |
| Sensor size | 1/2" inches | 1/1.3" inches |
| Pixel size | 0.8µm pixel | 0.6µm pixel |
| Autofocus | PDAF: phase detection autofocus | PDAF: phase detection autofocus on both cameras |
| Touch focus | Supported | Supported |
| Image stabilization | EIS: Digital 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 | feature not registered | feature not registered |
📸 Front camera | ||
| Oppo Reno4 Z 5G | Galaxy S25 Ultra (SM-S938B/DS 256GB) | |
| Front camera (secondary) | (dual front camera) 16 megapixels 2MP depth f/2.4 | 12 megapixels |
| Front camera resolution | 4608x3456 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 | 26mm (lens) | 26mm (lens) |
| Sensor size | 1/3.06" inches | 1/3.2" inches |
| Pixel size | 1µm pixel | 1.12µm pixel |
🔉 Sound and multimedia | ||
| Oppo Reno4 Z 5G | Galaxy S25 Ultra (SM-S938B/DS 256GB) | |
| Loudspeaker | Supported | Stereo sound 32-bit/384kHz Tuned by AKG |
| Active noise cancellation | 2 microphones or more | 3 microphones |
| Radio | Not supported | Not supported |
| TV | Not supported | Not supported |
| Video formats | MP4, H.265, 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 | ||
| Oppo Reno4 Z 5G | 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 | USB Type-C (reversible) | USB Type-C (reversible) |
| Bluetooth | 5.1 + A2DP/LE | 5.4 + A2DP/LE |
| WiFi | 802.11 a/b/g/n/ac [wifi5] (2.4GHz, 5GHz) + MIMO 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, GALILEO, BeiDou, QZSS | A-GPS, GeoTagging, GLONASS, GALILEO, BeiDou, QZSS |
| NFC | Supported | Supported |
| Infrared port | Not supported | Not supported |
🧭 Sensors | ||
| Oppo Reno4 Z 5G | Galaxy S25 Ultra (SM-S938B/DS 256GB) | |
| Sensors | Accelerometer Ambient light sensor Compass Face unlock Fingerprint sensor (side-mounted) Gyroscope Proximity sensor | Accelerometer Ambient light sensor Barometer Compass Face unlock Fingerprint sensor (under display) Gyroscope Hall effect Proximity sensor UWB (Ultra Wideband) |
| Vibrating alert | Supported | Supported |
🔋 Battery | ||
| Oppo Reno4 Z 5G | Galaxy S25 Ultra (SM-S938B/DS 256GB) | |
| Battery type | LiPo: li-ion polymer (Non removable) | Li-Ion: lithium-ion (Non removable) |
| Battery capacity | 4000 mAh | 5000 mAh |
| Charger, watts | 18W (9V/2A) Wired fast charging | 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 | 26 hours (1.1 days) | feature not registered |
| Standby | 360 hours (15 days) | feature not registered |
➕ Other features | ||
| Oppo Reno4 Z 5G | 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: Ink Black, Dew White • ColorOS 7.2 • 24-bit/192kHz audio • Case included | • Samsung DeX • Samsung Wireless DeX • Stylus (S Pen) • Circle to Search |
☢️ Radiation rate | ||
| Oppo Reno4 Z 5G | 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 |