Samsung Galaxy S25 Ultra (SM-S938B/DS 256GB) vs Blu Star 4.5 Design Edition (S451U)
Side by side comparison between Samsung Galaxy S25 Ultra vs Blu Star 4.5 Design Edition 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
4.5"
IPS
IPS
480x800
5
MP
MP
0.3mp
512MB
RAM
RAM
Quad-core
1700
mAh
mAh
(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!
34 Advantages 
5 Advantages | 14 Common items in both devices |
| 16 million |
| LED flash |
| PDAF: phase detection autofocus on both cameras / Autofocus |
| Capacitive |
| Multitouch |
| Accelerometer |
| Ambient light sensor |
| +7 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) | Blu Star 4.5 Design Edition (S451U) | |
| Change model | ||
| Model | Galaxy S25 Ultra (SM-S938B/DS 256GB) | Star 4.5 Design Edition (S451U) |
| Other model names | Galaxy S25 Ultra SM-S938B/Dual-SIM | Blu Star 4.5 S451u, Blu S451u |
| Country or region available |  (Global, International) |  USA |
| Brand | Samsung | Blu |
| Release date | 2/3/2025, Announced: 2/22/2025 | 11/1/2014 |
| 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) | 64.3 x 127.7 millimeters (2.53 x 5.03 in) |
| Weight | 218 grams (7.63 ounces) | 133 grams (4.66 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) | Blu Star 4.5 Design Edition (S451U) | |
| Display type | LTPO AMOLED | TFT IPS LCD |
| Screen size | 6.9" inches | 4.5" inches |
| Screen-to-body ratio | ~92.5% (screen-to-body ratio) | ~70.2% (screen-to-body ratio) |
| Display resolution | 1440x3120 pixels (19.5:9) | 480x800 pixels |
| Touchscreen | Capacitive Multitouch 10-points | Capacitive Multitouch |
| Pixel density (dot pitch) | 498 PPI | 207 PPI |
| Colors | 16 million | 16 million |
| Scratch-resistant glass | Gorilla Armor 2 | Not supported |
| 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) | Blu Star 4.5 Design Edition (S451U) | |
| System version | Android 15 | Android 4.4.2 KitKat |
| Firmware update | feature not registered | Android 5.0.2 Lollipop |
| User Interface | One UI 7.0 | feature not registered |
⚙️ Processor | ||
| Galaxy S25 Ultra (SM-S938B/DS 256GB) | Blu Star 4.5 Design Edition (S451U) | |
| Chipset | 64bit: Qualcomm Snapdragon 8 Elite (SM8750-AB) (3nm) | 32bit: MediaTek MT6582 |
| CPU | Octa-core, 2 processors: 2x 4.47GHz Oryon V2 Phoenix L (Dual-core) 6x 3.53GHz Oryon V2 Phoenix M (Hexa-core) | Quad-core, 1 processor: 4x 1.3GHz ARM Cortex-A7 (Quad-core) |
| GPU graphical controller | Qualcomm Adreno 830 (1100MHz) | ARM Mali-400 |
| Performance (benchmark) | AnTuTu: 2207809 (v10) Geekbench: 9846 (v6) | feature not registered |
💽 Memory and storage | ||
| Galaxy S25 Ultra (SM-S938B/DS 256GB) | Blu Star 4.5 Design Edition (S451U) | |
| RAM memory | 12GB LPDDR5X | 512MB LPDDR2 |
| Internal storage | 256GB (223GB available) UFS 4.0 | 4GB (2GB available) |
| External storage | Not supported | Until 32GB microSD, microSDHC (dedicated slot) |
📶 Mobile networks | ||
| Galaxy S25 Ultra (SM-S938B/DS 256GB) | Blu Star 4.5 Design Edition (S451U) | |
| Dual-SIM | Dual-SIM Standby - Call active on one sim card | Dual-SIM Standby - Call active on one sim card (dedicated slot) |
| SIM card | 2 slots (Dual-SIM) nano-SIM (4FF) + e-SIM | 2 slots (Dual-SIM) micro-SIM (3FF) |
| Maximum Download / Upload | 5000/1024 Mbps | 21/5.76 Mbps |
| Network technology | 2G, 3G, 4G, 5G | 2G, 3G |
| 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 850/1700/1900 |
| Primary 4G network | LTE Cat24 () TD-LTE () VoLTE | Not supported |
| 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+ |
| 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) | Blu Star 4.5 Design Edition (S451U) | |
| 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 | 5 megapixels |
| Main camera resolution | 20000x10000 pixels | 2592x1944 pixels |
| Video recording (primary) | 8K UHD (7680x4320) 30 fps | Full HD (1920x1080) 30 fps |
| Flash | LED flash | LED flash |
| 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 | Autofocus |
| Touch focus | Supported | Supported |
| Image stabilization | OIS: Optical stabilization | feature not registered |
| 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) | Blu Star 4.5 Design Edition (S451U) | |
| Front camera (secondary) | 12 megapixels | 0.3 megapixels |
| Front camera resolution | 4000x3000 pixels | 640x480 pixels |
| Video recording (secondary) | 4K UHD (3840x2160) | VGA (640x480) |
| Front flash | Not supported | Not supported |
| 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) | Blu Star 4.5 Design Edition (S451U) | |
| Loudspeaker | Stereo sound 32-bit/384kHz Tuned by AKG | Supported |
| Active noise cancellation | 3 microphones | Not supported |
| 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, eAAC+, FLAC |
🔌 Connectivity | ||
| Galaxy S25 Ultra (SM-S938B/DS 256GB) | Blu Star 4.5 Design Edition (S451U) | |
| USB | USB 3.2 Type-C, USB OTG On-The-Go | MicroUSB 2.0 |
| Audio output | Type-C reversible connector | 3.5mm jack |
| TV output | USB Type-C (reversible) | Not supported |
| Bluetooth | 5.4 + A2DP/LE | 4.0 + A2DP |
| WiFi | 802.11 a/b/g/n/ac/ax/be [wifi7/6E/6] (2.4GHz, 5GHz, 6GHz) + MIMO WiFi Direct, hotspot | 802.11 b/g/n [wifi4] (2.4GHz) WiFi Direct, hotspot |
| DLNA | Supported | Not supported |
| GPS | A-GPS, GeoTagging, GLONASS, GALILEO, BeiDou, QZSS | A-GPS, GeoTagging |
| NFC | Supported | Not supported |
| Infrared port | Not supported | Not supported |
🧭 Sensors | ||
| Galaxy S25 Ultra (SM-S938B/DS 256GB) | Blu Star 4.5 Design Edition (S451U) | |
| Sensors | Accelerometer Ambient light sensor Barometer Compass Face unlock Fingerprint sensor (under display) Gyroscope Hall effect Proximity sensor UWB (Ultra Wideband) | Accelerometer Ambient light sensor Compass Proximity sensor |
| Vibrating alert | Supported | Supported |
🔋 Battery | ||
| Galaxy S25 Ultra (SM-S938B/DS 256GB) | Blu Star 4.5 Design Edition (S451U) | |
| Battery type | Li-Ion: lithium-ion (Non removable) | Li-Ion: lithium-ion (Removable) |
| Battery capacity | 5000 mAh | 1700 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 | feature not registered |
| Standby | feature not registered | feature not registered |
➕ Other features | ||
| Galaxy S25 Ultra (SM-S938B/DS 256GB) | Blu Star 4.5 Design Edition (S451U) | |
| Call control | Voice dialing, Voice recorder, Voice commands | Voice dialing, Voice recorder |
| 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, White, Blue, Pink, Grey, Gold, Purple, Yellow • Leather in the back • Screen protector included • Silicon Case included • BLU Infinite View technology |
☢️ Radiation rate | ||
| Galaxy S25 Ultra (SM-S938B/DS 256GB) | Blu Star 4.5 Design Edition (S451U) | |
| 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 |