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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?

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Compare Blu Star 4.5 Design Edition X Samsung Galaxy S25 Ultra (SM-S938B/DS 256GB) 34Points
6.9"
AMOLED

1440x3120

200
MP

12mp

12GB
RAM

Octa-core

5000
mAh

(Non removable)

vs
05Points Blu Star 4.5 Design Edition (S451U) Compare Samsung Galaxy S25 Ultra X
4.5"
IPS

480x800

5
MP

0.3mp

512MB
RAM

Quad-core

1700
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!

Galaxy S25 Ultra (SM-S938B/DS 256GB)} 34 Advantages Samsung Galaxy S25 Ultra (SM-S938B/DS 256GB) vs Star 4.5 Design Edition (S451U)} 5 Advantages Blu Star 4.5 Design Edition (S451U)
+4.47GHz 64bit Octa-core (3nm)4 times
More powerful processor, you can open your applications faster
vs1.3GHz 32bit Quad-core
+12GB LPDDR5X23 times
More RAM memory. Typically more responsive and better for multitasking.
vs512MB LPDDR2
+256GB (223GB available)111 times
More internal storage for applications and files
vs4GB (2GB available)
+8.2 millimeters (0.32 inches)11%
Thinner
vs9.1 millimeters (0.36 inches)
+LTPO AMOLEDAdvantage
LTPO AMOLED display is brighter and more vivid
vsTFT IPS LCD
+1440x3120 pixels11 times
Higher resolution screen
vs480x800 pixels
+498 PPI141%
Crisper display of text, images and videos because it has more pixels per inch (ppi)
vs207 PPI
+6.9"53%
Larger screen
vs4.5"
+(quad camera) 200MP + 10MP + 50MP + 50MP61 times
Higher resolution main camera
vs(back) 5MP
+Digital and optical zoomAdvantage
The zoom allows for better focus and approach to take pictures
vsOnly digital zoom
+BSI sensorAdvantage
The BSI sensor allows the entry of more light generating photos with more detail and brightness
vsNot supported
+HDR photo/video on both camerasAdvantage
The HDR technology produced photos with more detail in dark areas
vsHDR photo only main camera
+(front) 12MP38 times
Higher resolution secondary camera to take pictures and selfies
vs(front) 0.3MP
+8K UHD (7680x4320)15 times
More image quality for recording videos with the primary camera
vsFull HD (1920x1080)
+(front) 4K UHD (3840x2160)26 times
More image quality for recording videos with the secondary camera
vs(front) VGA (640x480)
+Android 15Advantage
Android 15 is newer and safer
vsAndroid 5.0.2 Lollipop
+5G Sub6Advantage
The 5G Sub6 network is newer and faster
vs3G+ HSPA+
+(5G Sub6) 5000 Mbps237 times
Faster for surfing the internet and download files
vs(3G+ HSPA+) 21 Mbps
+BarometerAdvantage
Sensors help you use the device
vsNot supported
+Face unlockAdvantage
Sensors help you use the device
vsNot supported
+Fingerprint sensor (under display)Advantage
Sensors help you use the device
vsNot supported
+GyroscopeAdvantage
Sensors help you use the device
vsNot supported
+UWB (Ultra Wideband)Advantage
Sensors help you use the device
vsNot supported
+5000 mAh194%
Battery - higher amperage (mAh) allows more device usage time, but it also depends on the hardware and use
vs1700 mAh
+2 slots (Dual-SIM) + e-SIM (Eletronic)Advantage
You can have more mobile carriers/operators on the same device.
vs2 slots (Dual-SIM)
(dedicated slot)
+Active noise cancellationAdvantage
More noise-canceling microphones allow for better quality in calls and audio for recorded videos
vsNot supported
+802.11 a/b/g/n/ac/ax/be [wifi7/6E/6]Advantage
WiFi 802.11 a/b/g/n/ac/ax/be [wifi7/6E/6] is newer and faster
vs802.11 b/g/n [wifi4]
+DLNAAdvantage
With DLNA technology you can access and play media files on TV, tablet or DLNA compatible device.
vsNot supported
+5.4 + A2DP/LEAdvantage
Bluetooth 5.4 + A2DP/LE is newer and faster
vs4.0 + A2DP
+NFCAdvantage
NFC allows you to make payments by approach quickly and securely
vsNot supported
+USB 3.2 Type-C, USB OTG On-The-GoAdvantage
Newer and faster USB version for transferring photos, mp3 or data.
vsMicroUSB 2.0
+Type-CAdvantage
Reversible connector, you can stick in a USB-C cable any which way; either side is up.
vsMicroUSB 2.0
+Gorilla Armor 2Advantage
Protection against scratches on the screen lets you carry your phone with your keys
vsNot supported
+IP68 certifiedAdvantage
Protection against water allows you talk to your friends in the rain, for example
vsNot supported
Not supportedvs+Until 32GB microSD, microSDHCAdvantage
More external storage for files using memory cards
218 grams (7.63 ounces)vs+133 grams (4.66 ounces)64%
Lighter
Li-Ion: lithium-ion (Non removable)vs+Li-Ion: lithium-ion (Removable)Advantage
Removable battery can be replaced easily
Type-C reversible connectorvs+3.5mm jackAdvantage
Headsets with 3.5mm Jack size are more common and easy to find in stores
Not supportedvs+FMAdvantage
The radio lets you listen to your songs and sports in general

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 
ModelGalaxy S25 Ultra (SM-S938B/DS 256GB)Star 4.5 Design Edition (S451U)
Other model namesGalaxy S25 Ultra SM-S938B/Dual-SIMBlu Star 4.5 S451u, Blu S451u
Country or region available(Global, International)
(Global, International)
USA
USA
BrandSamsungBlu
Release date2/3/2025, Announced: 2/22/202511/1/2014
Depth8.2 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)
Weight218 grams (7.63 ounces)133 grams (4.66 ounces)
Build, materialsTitanium frame, glass front and back
Back: Gorilla Armor 2
feature not registered
Protection against water and othersIP68 certified: water-resistant up to 1.5 meters for 30min and dust-resistantNot supported

📲 Display

Galaxy S25 Ultra (SM-S938B/DS 256GB)Blu Star 4.5 Design Edition (S451U)
Display typeLTPO AMOLEDTFT IPS LCD
Screen size6.9" inches4.5" inches
Screen-to-body ratio~92.5% (screen-to-body ratio)~70.2% (screen-to-body ratio)
Display resolution1440x3120 pixels (19.5:9)480x800 pixels
TouchscreenCapacitive Multitouch 10-pointsCapacitive Multitouch
Pixel density (dot pitch)498 PPI207 PPI
Colors16 million16 million
Scratch-resistant glassGorilla Armor 2Not supported
Refresh rate120Hzfeature not registered
Display features2600nits[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 versionAndroid 15Android 4.4.2 KitKat
Firmware updatefeature not registeredAndroid 5.0.2 Lollipop
User InterfaceOne UI 7.0feature not registered

⚙️ Processor

Galaxy S25 Ultra (SM-S938B/DS 256GB)Blu Star 4.5 Design Edition (S451U)
Chipset64bit: Qualcomm Snapdragon 8 Elite (SM8750-AB) (3nm)32bit: MediaTek MT6582
CPUOcta-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 controllerQualcomm 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 memory12GB LPDDR5X512MB LPDDR2
Internal storage256GB (223GB available)
UFS 4.0
4GB (2GB available)
External storageNot supportedUntil 32GB microSD, microSDHC
(dedicated slot)

📶 Mobile networks

Galaxy S25 Ultra (SM-S938B/DS 256GB)Blu Star 4.5 Design Edition (S451U)
Dual-SIMDual-SIM Standby - Call active on one sim cardDual-SIM Standby - Call active on one sim card
(dedicated slot)
SIM card2 slots (Dual-SIM)
nano-SIM (4FF) + e-SIM
2 slots (Dual-SIM)
micro-SIM (3FF)
Maximum Download / Upload5000/1024 Mbps21/5.76 Mbps
Network technology2G, 3G, 4G, 5G2G, 3G
Frequency, bands Expand band details Collapse details
GSM MHz bandQuad-Band 850/900/1800/1900Quad-Band 850/900/1800/1900
Primary 2G networkCDMA 800/1900, GSM 850/900/1800/1900GSM 850/900/1800/1900
Primary 3G networkCDMA2000 1xEV-DO
TD-SCDMA 1900/2000
UMTS
UMTS 850/1700/1900
Primary 4G networkLTE Cat24 ()
TD-LTE ()
VoLTE
Not supported
Primary 5G networkSA/NSA/Sub6 ()Not supported
Primary data networkGPRS, 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, Sub6GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+
Secondary 2G networkCDMA 800/1900, GSM 850/900/1800/1900GSM 850/900/1800/1900
Secondary 3G networkCDMA2000 1xEV-DO
TD-SCDMA 1900/2000
UMTS
Not supported
Secondary 4G networkLTE Cat24 ()
TD-LTE ()
VoLTE
Not supported
Secondary data networkGPRS, 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, Sub6GPRS, 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 resolution20000x10000 pixels2592x1944 pixels
Video recording (primary)8K UHD (7680x4320) 30 fpsFull HD (1920x1080) 30 fps
FlashLED flashLED flash
Focal aperturef/1.7 (aperture)feature not registered
Focal length24mm (lens)feature not registered
Sensor size1/1.3" inchesfeature not registered
Pixel size0.6µm pixelfeature not registered
AutofocusPDAF: phase detection autofocus on both camerasAutofocus
Touch focusSupportedSupported
Image stabilizationOIS: Optical stabilizationfeature not registered
ZoomDigital and optical zoomOnly digital zoom
Face/smile detectionFace detection, Smile detectionFace detection, Smile detection
BSI sensorSupportedNot supported
HDRHDR photo/video on both camerasHDR photo only main camera
Camera extrasfeature not registeredfeature not registered

📸 Front camera

Galaxy S25 Ultra (SM-S938B/DS 256GB)Blu Star 4.5 Design Edition (S451U)
Front camera (secondary)12 megapixels0.3 megapixels
Front camera resolution4000x3000 pixels640x480 pixels
Video recording (secondary)4K UHD (3840x2160)VGA (640x480)
Front flashNot supportedNot supported
Focal aperturef/2.2 (aperture)feature not registered
Focal length26mm (lens)feature not registered
Sensor size1/3.2" inchesfeature not registered
Pixel size1.12µm pixelfeature not registered

🔉 Sound and multimedia

Galaxy S25 Ultra (SM-S938B/DS 256GB)Blu Star 4.5 Design Edition (S451U)
LoudspeakerStereo sound
32-bit/384kHz
Tuned by AKG
Supported
Active noise cancellation3 microphonesNot supported
RadioNot supportedFM
TVNot supportedNot supported
Video formatsMP4, H.265, H.264, H.263, XviD, MKVMP4, H.264, H.263
Audio formatsMP3, WAV, WMA, eAAC+, FLACMP3, WAV, eAAC+, FLAC

🔌 Connectivity

Galaxy S25 Ultra (SM-S938B/DS 256GB)Blu Star 4.5 Design Edition (S451U)
USBUSB 3.2 Type-C, USB OTG On-The-GoMicroUSB 2.0
Audio outputType-C reversible connector3.5mm jack
TV outputUSB Type-C (reversible)Not supported
Bluetooth5.4 + A2DP/LE4.0 + A2DP
WiFi802.11 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
DLNASupportedNot supported
GPSA-GPS, GeoTagging, GLONASS, GALILEO, BeiDou, QZSSA-GPS, GeoTagging
NFCSupportedNot supported
Infrared portNot supportedNot supported

🧭 Sensors

Galaxy S25 Ultra (SM-S938B/DS 256GB)Blu Star 4.5 Design Edition (S451U)
SensorsAccelerometer
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 alertSupportedSupported

🔋 Battery

Galaxy S25 Ultra (SM-S938B/DS 256GB)Blu Star 4.5 Design Edition (S451U)
Battery typeLi-Ion: lithium-ion (Non removable)Li-Ion: lithium-ion (Removable)
Battery capacity5000 mAh1700 mAh
Charger, watts45W Wired fast charging
Reverse charging by cable
USB Power Delivery 3.0
Wired charging
Inductive / wireless charging15W Qi wireless charging
4.5W Reverse wireless charging
feature not registered
Talk time autonomyfeature not registeredfeature not registered
Standbyfeature not registeredfeature not registered

➕ Other features

Galaxy S25 Ultra (SM-S938B/DS 256GB)Blu Star 4.5 Design Edition (S451U)
Call controlVoice dialing, Voice recorder, Voice commandsVoice dialing, Voice recorder
MessagingSMS (T9), MMS, E-mail, Push mailSMS (T9), MMS, E-mail, Push mail
Hands-free callingSupportedSupported
Video callingSupportedSupported
RingtonesPolyphonic and customizedPolyphonic and customized
Web browserHTML, XHTML, HTML5HTML, XHTML, HTML5
AntennaInternal antennaInternal antenna
Qwerty physical keyboardNot supportedNot 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 registeredfeature not registered
SAR 2W/kg (Europe, UK, etc.)feature not registeredfeature not registered
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