In depth comparison and review of OPPO Reno4 Z 5G and Samsung Galaxy S23 Ultra. 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 | OPPO Reno4 Z 5G | Samsung Galaxy S23 Ultra |
|---|
| Product Type | Smartphone | Smartphone | |
|---|---|---|---|
| Manufacturer Model Number | CPH2065 | SM-S918B/DS | |
| Form Factor | Touch | Touch | |
| Height | 163.8 mm | 163.4 mm | OPPO Reno4 Z 5G has greater height than Samsung Galaxy S23 Ultra. |
| Width | 75.5 mm | 78.1 mm | Samsung Galaxy S23 Ultra has greater width than OPPO Reno4 Z 5G. |
| Depth | 8.1 mm | 8.9 mm | OPPO Reno4 Z 5G is narrower than OPPO Reno4 Z 5G. |
| Weight | 184 g | 233 g | OPPO Reno4 Z 5G is lighter than OPPO Reno4 Z 5G. |
| Body Colour | Ink black | Dew white | Lavender | Cream | Green | Phantom black | |
| Body Material | - | PET film, recycled glass, Armour Aluminium frame | |
| Protection | - | Dustproof, splashproof, water-resistant | |
| Waterproof (Water-resistant) | - | Yes | Samsung Galaxy S23 Ultra is waterproof. |
| IP rating | - | IP68 | |
| Repairability Index | - | 8.2 (out of 10) | |
| SAR Value | 0.905 W/kg (head), 0.88 W/kg (head), 2.686 W/kg (limb) | 1.398 W/kg (body), 0.963 W/kg (head), 2.95 W/kg (limb) | |
| 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 | OPPO Reno4 Z 5G | Samsung Galaxy S23 Ultra |
|---|
| Display Type | LCD display | OLED display | |
|---|---|---|---|
| Display Technology | LTPS | Infinity-O Dynamic AMOLED 2X | |
| Screen Size (Display Size) | 6.57" | 6.8" | Samsung Galaxy S23 Ultra has larger screen size than OPPO Reno4 Z 5G. |
| Screen Resolution (Display Resolution) | 2400 x 1080 pixels | 3088 x 1440 pixels | Samsung Galaxy S23 Ultra has better screen resolution than OPPO Reno4 Z 5G. |
| Display Format | Full HD+ | QHD+ | |
| Pixel Density | 401 ppi | 500 ppi | Samsung Galaxy S23 Ultra has better pixel density than OPPO Reno4 Z 5G. |
| Max Brightness | 480 cd/m² | 1750 cd/m² | Samsung Galaxy S23 Ultra has better display brightness than OPPO Reno4 Z 5G. |
| Colour Depth | 16.7 million colours | 16.7 million colours | Both phones have the same color depth. |
| Contrast Ratio | 1500:1 | 3000000:1 | Samsung Galaxy S23 Ultra has better display contrast ratio than OPPO Reno4 Z 5G. |
| HDR | - | Yes | Samsung Galaxy S23 Ultra has HDR. |
| HDR Technology | - | HDR10+ | |
| Display Enhancement Technology | - | Vision Booster technology | |
| Display Refresh Rate | 120 Hz | 120 Hz | Both phones have the same refresh rate. |
| Touch Sampling Rate | 120 Hz | 240 Hz | |
| Display Features | Dark mode | AOD(Always On Display), Video Wallpaper, 100% DCI-P3 | |
| Display Protection (Screen Protector) | Corning Gorilla Glass 3 (scratch resistant glass) | Corning Gorilla Glass Victus 2 (scratch resistant glass) |
| PROCESSOR | OPPO Reno4 Z 5G | Samsung Galaxy S23 Ultra |
|---|
| Processor Type (CPU) | MediaTek Dimensity 800 5G | Qualcomm Snapdragon 8 Gen 2 | |
|---|---|---|---|
| Processor Number | MT6873V | - | |
| Clock Speed | 2 GHz | 3.36 GHz | Samsung Galaxy S23 Ultra has higher clock speed than OPPO Reno4 Z 5G. |
| Processor Core Qty | 8-core | 8-core | Both phones have the same number of phone cores. |
| Graphics System (GPU) | Mali-G57 MC4 | - |
| MEMORY | OPPO Reno4 Z 5G | Samsung Galaxy S23 Ultra |
|---|
| RAM | LPDDR4X SDRAM - 8 GB | LPDDR5 SDRAM - 8 GB | Both phones have the same RAM size. |
|---|---|---|---|
| Internal Memory Size (Storage Capacity) | 128 GB | 256 GB | Samsung Galaxy S23 Ultra has more internal memory than OPPO Reno4 Z 5G. |
| User Memory | - | 216.6 GB | |
| Memory Interface | UFS 2.1 | - |
| CAMERA | OPPO Reno4 Z 5G | Samsung Galaxy S23 Ultra |
|---|
| MAIN CAMERA |
|---|
| Number of Main Cameras | 4 | 4 | |
|---|---|---|---|
| Sensor Resolution | 48 Megapixel | 200 Megapixel | Samsung Galaxy S23 Ultra has better camera resolution than OPPO Reno4 Z 5G. |
| Sensor Size | 1/2" | - | |
| Lens Type | - | Wide-angle lens | |
| Lens Aperture | F/1.7 | F/1.7 | Both phones have the same camera lens aperture. |
| Lens Construction | 6-element | - | |
| Field of View (FoV) | - | 85 degree(s) | |
| Pixel Size | 0.8 μm | 0.6 μm | OPPO Reno4 Z 5G has larger camera pixel size than Samsung Galaxy S23 Ultra. |
| Optical Image Stabiliser (OIS) | - | Dual OIS (Optical Image Stabilisation) | Samsung Galaxy S23 Ultra has optical stabilisation. |
| Focus Adjustment | Automatic | Automatic | |
| Laser Auto Focus | - | Yes | |
| Minimum Focal Length (Focal Distance) | 25 mm | - | |
| Self-Timer Delay | - | Yes | |
| Special Effects | Live HDR, Bokeh effect, Stickers | Super HDR, face retouch, Grid Line, selfie colour tone | |
| HDR Mode | - | Auto HDR mode | |
| Camera Modes | Panorama, Time-lapse mode, Slow motion mode, Expert Mode, Portrait, Night, Dazzle Colour Mode, Ultra dark mode | Panorama, Slow motion mode, Pro mode, HYPERLAPSE, Super Slow-mo, Flowers, Greenery, Trees, Sky, Beaches, Watersides, Snow, Backlit, Text, Food, Face, Baby, Person, Dog, Cat, People, Sunset, Sunrise, City, Waterfall, Scenery, Stage, Vehicles, Drinks, Animal, Shoes, Indoor, Clothes, Night view, Portrait, Night, Motion Photo, Mountain, Filter mode, Single Take, Pro Video, Portrait video, Director's View, Expert RAW mode, My Filter mode, Astrolapse | |
| Light Source | LED flash | High CRI LED flash | |
| Still Image Resolutions | 8000 x 6000 | - | |
| Video Resolutions | 1920 x 1080 (1080p) at 30 fps, 1280 x 720 (720p) at 30 fps, 3840 x 2160 (4K) at 30 fps | 1920 x 1080 (1080p) at 60 fps, 1280 x 720 (720p) at 30 fps, 3840 x 2160 (4K) at 60 fps, Slo-mo video 1920 x 1080 (1080p) at 240 fps, Super slow motion video 1920 x 1080 (1080p) at 960 fps, 7680 x 4320 (UHD 8K) at 24fps, Hyperlapse 4K video support at 30 fps, Super Steady 1080p video support at 60 fps, 7680 x 4320 (UHD 8K) at 30fps, 3840 x 2160 (4K) HDR10+ at 60 fps, Director's View 1920 x 1080 (1080p) at 30 fps | |
| Camera Features (Functions) | Phase Detect Auto-Focus (PDAF), EIS video stabilisation, Ultra Steady Video, contrast detection auto-focus (CDAF), 4-in-1 pixel binning | Blink detection, QR-code scanner, RAW image capture, VDIS (Video Digital Image Stabilisation), Tracking AF, Quick Share, Scene Optimiser, Lens smudge, Flaw detection, Shot suggestions, blur detection, HDR10+ recording, Super steady, backlighting detection, Quick Measure, Zoom-In Mic, HEIF image capture, Take 33MP still photos while playing 8K video, Single Take, AR Doodle, HEVC (High Efficiency Video coding) support, Auto framing, UW shape correction, Auto FPS, object eraser, Digital zoom up to 20x for video, High Bitrate, 360 Audio Recording |
| SECOND CAMERA |
|---|
| Sensor Resolution (2nd Camera) | 8 Megapixel | 12 Megapixel | Samsung Galaxy S23 Ultra has better second camera resolution than OPPO Reno4 Z 5G. |
|---|---|---|---|
| Lens Type (2nd Camera) | Ultra wide-angle lens | Ultra wide-angle lens | |
| Lens Aperture (2nd Camera) | F/2.2 | F/2.2 | Both phones have the same second camera lens aperture. |
| Lens Element Qty (2nd Camera) | 5-element | - | |
| Field of View (2nd Camera) | 119 degree(s) | 120 degree(s) | Samsung Galaxy S23 Ultra has larger second camera lens field of view than OPPO Reno4 Z 5G. |
| Pixel Size (2nd Camera) | 1.12 μm | 1.4 μm | Samsung Galaxy S23 Ultra has larger second camera pixel size than OPPO Reno4 Z 5G. |
| Minimum Focal Length (2nd Camera) | 16 mm | - | |
| Camera Features (2nd Camera) | 5-piece lens | - |
| THIRD CAMERA |
|---|
| Sensor Resolution (3rd Camera) | 2 Megapixel | 10 Megapixel | Samsung Galaxy S23 Ultra has higher resolution third camera than OPPO Reno4 Z 5G. |
|---|---|---|---|
| Lens Type (3rd Camera) | - | Telephoto lens | |
| Lens Aperture (3rd Camera) | F/2.4 | F/4.9 | OPPO Reno4 Z 5G has better third camera lens aperture than OPPO Reno4 Z 5G. |
| Lens Element Qty (3rd Camera) | 3-element | - | |
| Field of View (3rd Camera) | - | 11 degree(s) | |
| Pixel Size (3rd Camera) | 1.75 μm | 1.12 μm | OPPO Reno4 Z 5G has larger third camera pixel size than Samsung Galaxy S23 Ultra. |
| Optical Zoom | - | 10x | |
| Camera Features (3rd Camera) | - | 100x Super Resolution Zoom, Space Zoom |
| FOURTH CAMERA |
|---|
| Sensor Resolution (4th Camera) | 2 Megapixel | 10 Megapixel | Samsung Galaxy S23 Ultra has higher resolution fourth camera than OPPO Reno4 Z 5G. |
|---|---|---|---|
| Lens Type (4th Camera) | - | Telephoto lens | |
| Lens Aperture (4th Camera) | F/2.4 | F/2.4 | Both phones have the same lens aperture of the fourth camera. |
| Lens Element Qty (4th Camera) | 3-element | - | |
| Field of View (4th Camera) | - | 36 degree(s) | |
| Pixel Size (4th Camera) | 1.75 μm | 1.12 μm | OPPO Reno4 Z 5G has larger fourth camera pixel size than Samsung Galaxy S23 Ultra. |
| Optical Zoom | - | 3x | |
| Camera Functions (4th Camera) | Monochrome | - |
| FRONT CAMERA |
|---|
| Number of Front Cameras | 2 | 1 | |
|---|---|---|---|
| Sensor Resolution (Front) | 16 Megapixel | 12 Megapixel | OPPO Reno4 Z 5G has better front camera resolution than Samsung Galaxy S23 Ultra. |
| Lens Aperture (Front) | F/2.0 | F/2.2 | OPPO Reno4 Z 5G has better front lens aperture than OPPO Reno4 Z 5G. |
| Field of View (Front) | - | 80 degree(s) | |
| Pixel Size (Front) | 1 μm | 1.12 μm | Samsung Galaxy S23 Ultra has larger front camera pixel size than OPPO Reno4 Z 5G. |
| Focus Adjustment | - | Automatic | |
| Special Effects (Front) | HDR | - | |
| Camera Modes (Front) | Panorama, Time-lapse mode, Slow motion mode, night mode, Expert Mode, Portrait | - | |
| Light Source (Front) | Display flash | - | |
| Still Image Resolutions (Front) | 4608 x 3456 | - | |
| Video Resolutions (Front) | 1920 x 1080 (1080p) at 30 fps, 1280 x 720 (720p) at 30 fps | - | |
| Camera Features (Front) | 5P lens | 2PD AF |
| SECOND FRONT CAMERA |
|---|
| Sensor Resolution (2nd Front) | 2 Megapixel | - | |
|---|---|---|---|
| Lens Aperture (2nd Front) | F/2.4 | - | |
| Pixel Size (2nd Front) | 1.75 μm | - | |
| Camera Functions (2nd Front) | 3D depth camera | - | |
| Camera Features (2nd Front) | 3-piece lens | - |
| BATTERY AND CHARGING | OPPO Reno4 Z 5G | Samsung Galaxy S23 Ultra |
|---|
| Battery Capacity (Battery Size) | 4000 mAh | 5000 mAh | Samsung Galaxy S23 Ultra has larger battery capacity than OPPO Reno4 Z 5G. |
|---|---|---|---|
| Fast Charging Technology | - | Qualcomm Quick Charge 2.0, Adaptive Fast Charging, Samsung Super Fast Charging, Power Delivery 3.0 | Samsung Galaxy S23 Ultra has fast charging technology. |
| Recharge Time (Charging Time) | 116 min | - | |
| Wireless Charging | - | Yes | Samsung Galaxy S23 Ultra can be charged wirelessly. |
| Wireless Charging Standards | - | WPC, Qi, Fast Wireless Charging 2.0, Wireless PowerShare | |
| Talk Time | - | 2940 minutes | |
| Run Time Details | - | Talk (4G): up to 2940 min Active online usage (LTE): up to 25 hrs Active online usage (Wi-Fi): up to 25 hrs Playback (wireless video): up to 26 hrs Playback (wireless audio): up to 99 hrs |
|
| Battery Technology | Lithium Ion | - |
| CELLULAR | OPPO Reno4 Z 5G | Samsung Galaxy S23 Ultra |
|---|
| Technology | WCDMA (UMTS) / GSM | WCDMA (UMTS) / GSM | |
|---|---|---|---|
| Mobile Broadband Generation | 5G | 5G | Both phones have the same mobile network generation. |
| Operating System | ColorOS 7.1 (based on Android 10) | Android 13 | |
| User Interface | - | Samsung One UI 5.1 | |
| Intelligent Assistant | - | Bixby | |
| Payment Technology | - | Samsung Pay | |
| Navigation | GPS, A-GPS, GLONASS, BeiDou, Galileo, QZSS | GPS, GLONASS, BeiDou, Galileo, QZSS |
| COMMUNICATIONS | OPPO Reno4 Z 5G | Samsung Galaxy S23 Ultra |
|---|
| Data Transmission | GPRS, EDGE, HSDPA, HSUPA, HSPA+, VoLTE, FDD-LTE, TDD-LTE, 5G NR FR1 | FDD-LTE, TDD-LTE, 5G NR FR1 | |
|---|---|---|---|
| 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 4, Band 5, Band 6, Band 8, Band 19 | Band 1, Band 2, Band 4, Band 5, Band 8 | |
| 3G UMTS Frequency | 2100, 1900, 1700, 850, 800, 900, 800 | 2100, 1900, 1700, 850, 900 | |
| 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 38, Band 39, Band 40, Band 41, Band 66 | 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 32, Band 38, Band 39, Band 40, Band 41, Band 66 | |
| 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 2600, TDD 1900, TDD 2300, TDD 2500, FDD 1700 - 2110 AWS-3 | 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 1500 L, TDD 2600, TDD 1900, TDD 2300, TDD 2500, FDD 1700 - 2110 AWS-3 | |
| 5G NR Band | N1, n3, n5, n7, n8, n20, n28, n38, n41, n77, n78, n79, n40 | N1, n2, n3, n5, n7, n8, n20, n28, n38, n41, n66, n75, n77, n78, n40, n25, n12 | |
| 5G NR Frequency | FDD 2100, FDD 1800, FDD 850, FDD 2600, FDD 900, FDD 800, FDD 700APT, TDD TD 2600, TDD TD 2500, TDD TD 3700, TDD TD 3500, TDD TD 4500, TDD 2300 | 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, SDL DL 1500+, TDD TD 3700, TDD TD 3500, TDD 2300, FDD 1900, n12 | |
| Wireless Interface | IEEE 802.11a/b/g/n/ac | IEEE 802.11a/b/g/n/ac/ax, Wi-Fi 6E | |
| Bluetooth | Bluetooth 5.1 | Bluetooth 5.3 | |
| NFC | Yes | Yes | Both phones have an NFC reader for mobile payments. |
| Ultra-Wideband (UWB) | - | Yes | Samsung Galaxy S23 Ultra has UWB wireless technology. |
| MEDIA | OPPO Reno4 Z 5G | Samsung Galaxy S23 Ultra |
|---|
| Supported Digital Audio Standards | WAV, WMA, AAC, AMR, MP3, FLAC, OGG, APE (Monkey's Audio), apt-X, LDAC, MID, SBC, apt-X HD | WAV, AAC, PCM, AMR, MP3, FLAC, XMF, OGG, MIDI, APE (Monkey's Audio), M4A, DSF, DSD, MXMF, OGA, 3GA, AWB, IMY, RTTTL, RTX, OTA, DFF, MID, DSD64, DSD128 | |
|---|---|---|---|
| Supported Digital Video Standards | MKV, FLV, AVI, WMV, ASF, 3GP, H.264, H.265, MP4 | MKV, FLV, AVI, 3GP, M4V, WebM, 3G2, MP4 | |
| Sound Enhancements | Hi-Res audio certified, Dirac 2.0 sound effect | Dolby Digital Plus sound, Dolby Atmos sound technology, Surround sound, Dolby Digital sound, amplify ambient sound |
| FEATURES | OPPO Reno4 Z 5G | Samsung Galaxy S23 Ultra |
|---|
| Phone Functions | Speakerphone, voice control, call timer, conference call, flight mode, voice dialing, vibrating alert | - | |
|---|---|---|---|
| Sensors | Accelerometer, ambient light sensor, proximity sensor, geomagnetic sensor, gravity sensor | Accelerometer, ambient light sensor, proximity sensor, barometer, gyro sensor, hall sensor, geomagnetic sensor | |
| Security Devices | Face recognition, fingerprint reader (side) | Fingerprint reader (under display), face recognition | |
| Additional Phone Features | Multitasking, Fast Charging, OPPO Relax | S Pen multi-input, Air View, MIMO technology, Screen Write, notification flashlight, Smart Select, Three microphones, Samsung KNOX, Smart View, Live message, Screen off memo, Samsung DeX support, Bixby Vision, Secure Folder function, TalkBack, Dual Audio, Intelligent Performance Enhancer, Samsung Smart Switch, AR Doodle, PENUP, Bixby key, Bluetooth Scalable Codec, Samsung Knox Vault, DisplayPort over USB Type-C, dual stereo speakers tuned by Dolby Atmos, Samsung Seamless Codec, Samsung Wallet |
| OTHERS | OPPO Reno4 Z 5G | Samsung Galaxy S23 Ultra |
|---|
| Included Accessories | Headphones, power adapter, SIM card removal tool, USB-C cable, protective case | SIM card removal tool, S Pen, USB-C to USB-C cable | |
|---|---|---|---|
| Compliant Standards | TUV Rheinland Low Blue Light Certification | VDE, IP68, HAC (Hearing Aid Compatible), EcoLogo, IEC 61960, Carbon Trust | |
| Max Depth of Water Resistance | - | 1.5 m |
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