Samsung Galaxy S25 Ultra (SM-S938B/DS 256GB) vs ZTE Blade V8 Pro (Z978)
Side by side comparison between Samsung Galaxy S25 Ultra vs ZTE Blade V8 Pro phones, differences, pros, cons and full specifications. What's the better?
,
6.9"
AMOLED
AMOLED
1440x3120
200
MP
MP
12mp
12GB
RAM
RAM
Octa-core
5000
mAh
mAh
(Non removable)
vs
5.5"
IPS
IPS
1080x1920
13
MP
MP
8mp
3GB
RAM
RAM
Octa-core
3140
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!
29 Advantages 
5 Advantages | 19 Common items in both devices |
| 16 million |
| PDAF: phase detection autofocus on both cameras / PDAF: phase detection autofocus |
| Capacitive |
| Multitouch |
| Accelerometer |
| Ambient light sensor |
| Compass |
| +12 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 | ||
| Galaxy S25 Ultra (SM-S938B/DS 256GB) | ZTE Blade V8 Pro (Z978) | |
| Change model | ||
| Model | Galaxy S25 Ultra (SM-S938B/DS 256GB) | Blade V8 Pro (Z978) |
| Other model names | Galaxy S25 Ultra SM-S938B/Dual-SIM | ZTE Blade V8 Pro Z978, ZTE BV8P121 |
| Country or region available |  (Global, International) |  USA |
| Brand | Samsung | ZTE |
| Release date | 2/3/2025, Announced: 2/22/2025 | 1/1/2017 |
| Depth | 8.2 millimeters (0.32 inches) | 9.1 millimeters (0.36 inches) |
| Size (width x height) | 77.6 x 162.8 millimeters (3.06 x 6.41 in) | 77 x 156 millimeters (3.03 x 6.14 in) |
| Weight | 218 grams (7.63 ounces) | 185 grams (6.48 ounces) |
| Build, materials | Titanium frame, glass front and back Back: Gorilla Armor 2 | feature not registered |
| Protection against water and others | IP68 certified: water-resistant up to 1.5 meters for 30min and dust-resistant | Not supported |
📲 Display | ||
| Galaxy S25 Ultra (SM-S938B/DS 256GB) | ZTE Blade V8 Pro (Z978) | |
| Display type | LTPO AMOLED | TFT IPS LCD |
| Screen size | 6.9" inches | 5.5" inches |
| Screen-to-body ratio | ~92.5% (screen-to-body ratio) | ~69.4% (screen-to-body ratio) |
| Display resolution | 1440x3120 pixels (19.5:9) | 1080x1920 pixels |
| Touchscreen | Capacitive Multitouch 10-points | Capacitive Multitouch |
| Pixel density (dot pitch) | 498 PPI | 401 PPI |
| Colors | 16 million | 16 million |
| Scratch-resistant glass | Gorilla Armor 2 | Gorilla Glass 3 |
| Refresh rate | 120Hz | feature not registered |
| Display features | 2600nits[peak] HDR10+ Always-On Display | feature not registered |
🤖 Operating System | ||
| Galaxy S25 Ultra (SM-S938B/DS 256GB) | ZTE Blade V8 Pro (Z978) | |
| System version | Android 15 | Android 6.0.1 Marshmallow |
| Firmware update | feature not registered | feature not registered |
| User Interface | One UI 7.0 | feature not registered |
⚙️ Processor | ||
| Galaxy S25 Ultra (SM-S938B/DS 256GB) | ZTE Blade V8 Pro (Z978) | |
| Chipset | 64bit: Qualcomm Snapdragon 8 Elite (SM8750-AB) (3nm) | 64bit: Qualcomm Snapdragon 625 MSM8953 (14nm) |
| CPU | Octa-core, 2 processors: 2x 4.47GHz Oryon V2 Phoenix L (Dual-core) 6x 3.53GHz Oryon V2 Phoenix M (Hexa-core) | Octa-core, 1 processor: 8x 2GHz ARM Cortex-A53 (Octa-core) |
| GPU graphical controller | Qualcomm Adreno 830 (1100MHz) | Qualcomm Adreno 506 650Mhz |
| Performance (benchmark) | AnTuTu: 2207809 (v10) Geekbench: 9846 (v6) | feature not registered |
💽 Memory and storage | ||
| Galaxy S25 Ultra (SM-S938B/DS 256GB) | ZTE Blade V8 Pro (Z978) | |
| RAM memory | 12GB LPDDR5X | 3GB LPDDR3 |
| Internal storage | 256GB (223GB available) UFS 4.0 | 32GB (22GB available) |
| External storage | Not supported | Until 256GB microSD, microSDXC (hybrid slot/shares the same SIM-2 slot) |
📶 Mobile networks | ||
| Galaxy S25 Ultra (SM-S938B/DS 256GB) | ZTE Blade V8 Pro (Z978) | |
| Dual-SIM | Dual-SIM Standby - Call active on one sim card | Dual-SIM Standby - Call active on one sim card (hybrid slot/shares the same microSD slot) |
| SIM card | 2 slots (Dual-SIM) nano-SIM (4FF) + e-SIM | 2 slots (Dual-SIM) nano-SIM (4FF) |
| Maximum Download / Upload | 5000/1024 Mbps | 150/50 Mbps |
| Network technology | 2G, 3G, 4G, 5G | 2G, 3G, 4G |
| 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 | CDMA 800/1900, GSM 850/900/1800/1900 | GSM 850/900/1800/1900 |
| Primary 3G network | CDMA2000 1xEV-DO TD-SCDMA 1900/2000 UMTS | UMTS 850/900/1700/2100 |
| Primary 4G network | LTE Cat24 () TD-LTE () VoLTE | LTE Cat4 700/850/1700/1900/2600 (Bands 2,4,5,7,12) |
| Primary 5G network | SA/NSA/Sub6 () | Not supported |
| Primary data network | 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 | GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, LTE |
| Secondary 2G network | CDMA 800/1900, GSM 850/900/1800/1900 | GSM 850/900/1800/1900 |
| Secondary 3G network | CDMA2000 1xEV-DO TD-SCDMA 1900/2000 UMTS | Not supported |
| Secondary 4G network | LTE Cat24 () TD-LTE () VoLTE | Not supported |
| Secondary data network | 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 | GPRS, EDGE |
📷 Camera | ||
| Galaxy S25 Ultra (SM-S938B/DS 256GB) | ZTE Blade V8 Pro (Z978) | |
| Back camera (main camera) | (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 | (dual camera) 13 megapixels 13MP |
| Main camera resolution | 20000x10000 pixels | 4128x3096 pixels |
| Video recording (primary) | 8K UHD (7680x4320) 30 fps | 4K UHD (3840x2160) 30 fps |
| Flash | LED flash | Dual-LED on main camera and LED on front camera |
| Focal aperture | f/1.7 (aperture) | feature not registered |
| Focal length | 24mm (lens) | feature not registered |
| Sensor size | 1/1.3" inches | feature not registered |
| Pixel size | 0.6µm pixel | feature not registered |
| Autofocus | PDAF: phase detection autofocus on both cameras | PDAF: phase detection autofocus |
| Touch focus | Supported | Supported |
| Image stabilization | OIS: Optical stabilization | EIS: Digital stabilization |
| Zoom | Digital and optical zoom | Only digital zoom |
| Face/smile detection | Face detection, Smile detection | Face detection, Smile detection |
| BSI sensor | Supported | Not supported |
| HDR | HDR photo/video on both cameras | HDR photo only main camera |
| Camera extras | feature not registered | feature not registered |
📸 Front camera | ||
| Galaxy S25 Ultra (SM-S938B/DS 256GB) | ZTE Blade V8 Pro (Z978) | |
| Front camera (secondary) | 12 megapixels | 8 megapixels |
| Front camera resolution | 4000x3000 pixels | 3264x2448 pixels |
| Video recording (secondary) | 4K UHD (3840x2160) | Full HD (1920x1080) |
| Front flash | Not supported | LED |
| Focal aperture | f/2.2 (aperture) | feature not registered |
| Focal length | 26mm (lens) | feature not registered |
| Sensor size | 1/3.2" inches | feature not registered |
| Pixel size | 1.12µm pixel | feature not registered |
🔉 Sound and multimedia | ||
| Galaxy S25 Ultra (SM-S938B/DS 256GB) | ZTE Blade V8 Pro (Z978) | |
| Loudspeaker | Stereo sound 32-bit/384kHz Tuned by AKG | Supported |
| Active noise cancellation | 3 microphones | 2 microphones or more |
| Radio | Not supported | FM |
| TV | Not supported | Not supported |
| Video formats | MP4, H.265, H.264, H.263, XviD, MKV | MP4, H.264, H.263 |
| Audio formats | MP3, WAV, WMA, eAAC+, FLAC | MP3, WAV, OGG, eAAC+, FLAC |
🔌 Connectivity | ||
| Galaxy S25 Ultra (SM-S938B/DS 256GB) | ZTE Blade V8 Pro (Z978) | |
| USB | USB 3.2 Type-C, USB OTG On-The-Go | USB 2.0 Type-C reversible connector |
| Audio output | Type-C reversible connector | 3.5mm jack |
| TV output | USB Type-C (reversible) | Not supported |
| Bluetooth | 5.4 + A2DP/LE | 4.2 + A2DP |
| WiFi | 802.11 a/b/g/n/ac/ax/be [wifi7/6E/6] (2.4GHz, 5GHz, 6GHz) + MIMO WiFi Direct, hotspot | 802.11 a/b/g/n/ac [wifi5] (2.4GHz, 5GHz) + MIMO WiFi Direct, hotspot |
| DLNA | Supported | Not supported |
| GPS | A-GPS, GeoTagging, GLONASS, GALILEO, BeiDou, QZSS | A-GPS, GeoTagging, GLONASS |
| NFC | Supported | Supported |
| Infrared port | Not supported | Not supported |
🧭 Sensors | ||
| Galaxy S25 Ultra (SM-S938B/DS 256GB) | ZTE Blade V8 Pro (Z978) | |
| Sensors | Accelerometer Ambient light sensor Barometer Compass Face unlock 2D Fingerprint sensor (under display) Gyroscope Hall effect Proximity sensor UWB (Ultra Wideband) | Accelerometer Ambient light sensor Compass Fingerprint sensor Gyroscope Hall effect Proximity sensor |
| Vibrating alert | Supported | Supported |
🔋 Battery | ||
| Galaxy S25 Ultra (SM-S938B/DS 256GB) | ZTE Blade V8 Pro (Z978) | |
| Battery type | Li-Ion: lithium-ion (Non removable) | LiPo: li-ion polymer (Non removable) |
| Battery capacity | 5000 mAh | 3140 mAh |
| Charger, watts | 45W Wired fast charging Reverse charging by cable USB Power Delivery 3.0 | Wired charging |
| Inductive / wireless charging | 15W Qi wireless charging 4.5W Reverse wireless charging | feature not registered |
| Talk time autonomy | feature not registered | 24 hours (1 day) |
| Standby | feature not registered | 552 hours (23 days) |
➕ Other features | ||
| Galaxy S25 Ultra (SM-S938B/DS 256GB) | ZTE Blade V8 Pro (Z978) | |
| 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 | • Samsung DeX • Samsung Wireless DeX • Stylus (S Pen) • Circle to Search | • Colors: Black Diamond • USB On-The-Go • 2.5D curved edge screen • Metal frame • Plastic back case • MiFavor UI • 24-bit/192kHz audio • Dolby audio sound enhancement • Fast battery charging • Quick Charge 2.0 • HAC M3/T4 |
☢️ Radiation rate | ||
| Galaxy S25 Ultra (SM-S938B/DS 256GB) | ZTE Blade V8 Pro (Z978) | |
| 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 |