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Oppo Reno4 Z 5G vs Blu Star 4.5 (S450U)

Side by side comparison between Oppo Reno4 Z 5G vs Blu Star 4.5 phones, differences, pros, cons and full specifications. What's the better?

,
6.57"
IPS

1080x2400

48
MP

16mp

8GB
RAM

Octa-core

4000
mAh

(Non removable)

vs
04Points Blu Star 4.5 (S450U) Compare Oppo Reno4 Z 5G X
4.5"
IPS

480x800

5
MP

0.3mp

512MB
RAM

Quad-core

1700
mAh

(Removable)

What's the better phone? Oppo Reno4 Z 5G

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!

Reno4 Z 5G} 25 Advantages Oppo Reno4 Z 5G vs Star 4.5 (S450U)} 4 Advantages Blu Star 4.5 (S450U)
+2GHz 64bit Octa-core131%
More powerful processor, you can open your applications faster
vs1.3GHz 32bit Quad-core
+8GB LPDDR4X15 times
More RAM memory. Typically more responsive and better for multitasking.
vs512MB LPDDR2
+128GB (108GB available)53 times
More internal storage for applications and files
vs4GB (2GB available)
+8.1 millimeters (0.32 inches)12%
Thinner
vs9.1 millimeters (0.36 inches)
+1080x2400 pixels6 times
Higher resolution screen
vs480x800 pixels
+401 PPI94%
Crisper display of text, images and videos because it has more pixels per inch (ppi)
vs207 PPI
+6.57"46%
Larger screen
vs4.5"
+(quad camera) 48MP + 8MP + 2MP + 2MP11 times
Higher resolution main camera
vs(back) 5MP
+HDR photo on both camerasAdvantage
The HDR technology produced photos with more detail in dark areas
vsHDR photo only main camera
+(dual front camera) 16MP + 2MP57 times
Higher resolution secondary camera to take pictures and selfies
vs(front) 0.3MP
+4K UHD (3840x2160)3 times
More image quality for recording videos with the primary camera
vsFull HD (1920x1080)
+(front) Full HD (1920x1080)6 times
More image quality for recording videos with the secondary camera
vs(front) VGA (640x480)
+Android 10Advantage
Android 10 is newer and safer
vsAndroid 5.0.2 Lollipop
+5G SA/NSAAdvantage
The 5G SA/NSA network is newer and faster
vs3G+ HSPA+
+(5G SA/NSA) 3500 Mbps166 times
Faster for surfing the internet and download files
vs(3G+ HSPA+) 21 Mbps
+Face unlockAdvantage
Sensors help you use the device
vsNot supported
+Fingerprint sensor (side-mounted)Advantage
Sensors help you use the device
vsNot supported
+GyroscopeAdvantage
Sensors help you use the device
vsNot supported
+4000 mAh135%
Battery - higher amperage (mAh) allows more device usage time, but it also depends on the hardware and use
vs1700 mAh
+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 [wifi5]Advantage
WiFi 802.11 a/b/g/n/ac [wifi5] is newer and faster
vs802.11 b/g/n [wifi4]
+5.1 + A2DP/LEAdvantage
Bluetooth 5.1 + A2DP/LE is newer and faster
vs4.0 + A2DP
+NFCAdvantage
NFC allows you to make payments by approach quickly and securely
vsNot supported
+Type-CAdvantage
Reversible connector, you can stick in a USB-C cable any which way; either side is up.
vsMicroUSB 2.0
+Gorilla Glass 3Advantage
Protection against scratches on the screen lets you carry your phone with your keys
vsNot supported
Not supportedvs+Until 32GB microSD, microSDHCAdvantage
More external storage for files using memory cards
184 grams (6.44 ounces)vs+133 grams (4.66 ounces)38%
Lighter
LiPo: li-ion polymer (Non removable)vs+Li-Ion: lithium-ion (Removable)Advantage
Removable battery can be replaced easily
Not supportedvs+FMAdvantage
The radio lets you listen to your songs and sports in general

19 Common items in both devices
LTPS IPS LCD / TFT IPS LCD
16 million
LED flash
Only digital zoom
PDAF: phase detection autofocus / Autofocus
Capacitive
Multitouch
+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

Oppo Reno4 Z 5GBlu Star 4.5 (S450U)
Change model 
ModelReno4 Z 5GStar 4.5 (S450U)
Other model namesOppo Reno 4 Z 5G CPH2065AT&T/Cricket/T-Mobile/MetroPCS Blu Star 4.5
Country or region available(Global, International)
(Global, International)
USA
USA
BrandOppoBlu
Release date10/15/2020, Announced: 9/29/202010/1/2014
Depth8.1 millimeters (0.32 inches)9.1 millimeters (0.36 inches)
Size (width x height)75.5 x 163.8 millimeters (2.97 x 6.45 in)64.3 x 127.7 millimeters (2.53 x 5.03 in)
Weight184 grams (6.44 ounces)133 grams (4.66 ounces)
Build, materialsPlastic body, glass frontfeature not registered
Protection against water and othersNot supportedNot supported

📲 Display

Oppo Reno4 Z 5GBlu Star 4.5 (S450U)
Display typeLTPS IPS LCDTFT IPS LCD
Screen size6.57" inches4.5" inches
Screen-to-body ratio~84.3% (screen-to-body ratio)~70.2% (screen-to-body ratio)
Display resolution1080x2400 pixels (20:9)480x800 pixels
TouchscreenCapacitive MultitouchCapacitive Multitouch
Pixel density (dot pitch)401 PPI207 PPI
Colors16 million16 million
Scratch-resistant glassGorilla Glass 3Not supported
Refresh rate120Hzfeature not registered
Display features480nits[typ]feature not registered

🤖 Operating System

Oppo Reno4 Z 5GBlu Star 4.5 (S450U)
System versionAndroid 10Android 4.4.2 KitKat
Firmware updatefeature not registeredAndroid 5.0.2 Lollipop
User Interfacefeature not registeredfeature not registered

⚙️ Processor

Oppo Reno4 Z 5GBlu Star 4.5 (S450U)
Chipset64bit: MediaTek Dimensity 800 MT6873V (7nm)32bit: MediaTek MT6582
CPUOcta-core, 2 processors:
4x 2GHz ARM Cortex-A76 (Quad-core)
4x 2GHz ARM Cortex-A55 (Quad-core)
Quad-core, 1 processor:
4x 1.3GHz ARM Cortex-A7 (Quad-core)
GPU graphical controllerARM Mali-G57 MC4ARM Mali-400
Performance (benchmark)feature not registeredfeature not registered

💽 Memory and storage

Oppo Reno4 Z 5GBlu Star 4.5 (S450U)
RAM memory8GB LPDDR4X512MB LPDDR2
Internal storage128GB (108GB available)
UFS 2.1
4GB (2GB available)
External storageNot supportedUntil 32GB microSD, microSDHC
(dedicated slot)

📶 Mobile networks

Oppo Reno4 Z 5GBlu Star 4.5 (S450U)
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)
2 slots (Dual-SIM)
micro-SIM (3FF)
Maximum Download / Upload3500/1920 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 networkGSM 850/900/1800/1900GSM 850/900/1800/1900
Primary 3G networkUMTS 850/900/1700/1900/2100UMTS 850/1700/1900
Primary 4G networkLTE Cat6 (1, 2, 3, 4, 5, 7, 8, 12, 17, 18, 19, 20, 26, 28, 66)
TD-LTE (38, 39, 40, 41)
VoLTE
Not supported
Primary 5G networkSA/NSA (1, 3, 5, 7, 8, 20, 28, 38, 40, 41, 77, 78)Not supported
Primary data networkGPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A, SA/NSAGPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+
Secondary 2G networkGSM 850/900/1800/1900GSM 850/900/1800/1900
Secondary 3G networkNot supportedNot supported
Secondary 4G networkNot supportedNot supported
Secondary data networkGPRS, EDGEGPRS, EDGE

📷 Camera

Oppo Reno4 Z 5GBlu Star 4.5 (S450U)
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
5 megapixels
Main camera resolution8000x6000 pixels2592x1944 pixels
Video recording (primary)4K UHD (3840x2160) 30 fpsFull HD (1920x1080) 30 fps
FlashLED flashLED flash
Focal aperturef/1.7 (aperture)feature not registered
Focal length26mm (lens)feature not registered
Sensor size1/2" inchesfeature not registered
Pixel size0.8µm pixelfeature not registered
AutofocusPDAF: phase detection autofocusAutofocus
Touch focusSupportedSupported
Image stabilizationEIS: Digital stabilizationfeature not registered
ZoomOnly digital zoomOnly digital zoom
Face/smile detectionFace detection, Smile detectionFace detection, Smile detection
BSI sensorNot supportedNot supported
HDRHDR photo on both camerasHDR photo only main camera
Camera extrasfeature not registeredfeature not registered

📸 Front camera

Oppo Reno4 Z 5GBlu Star 4.5 (S450U)
Front camera (secondary)(dual front camera)
16 megapixels
2MP depth f/2.4
0.3 megapixels
Front camera resolution4608x3456 pixels640x480 pixels
Video recording (secondary)Full HD (1920x1080)VGA (640x480)
Front flashNot supportedNot supported
Focal aperturef/2.0 (aperture)feature not registered
Focal length26mm (lens)feature not registered
Sensor size1/3.06" inchesfeature not registered
Pixel size1µm pixelfeature not registered

🔉 Sound and multimedia

Oppo Reno4 Z 5GBlu Star 4.5 (S450U)
LoudspeakerSupportedSupported
Active noise cancellation2 microphones or moreNot 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

Oppo Reno4 Z 5GBlu Star 4.5 (S450U)
USBUSB 2.0 Type-C, USB OTG On-The-GoMicroUSB 2.0
Audio output3.5mm jack3.5mm jack
TV outputUSB Type-C (reversible)Not supported
Bluetooth5.1 + A2DP/LE4.0 + A2DP
WiFi802.11 a/b/g/n/ac [wifi5] (2.4GHz, 5GHz) + MIMO
WiFi Direct, hotspot
802.11 b/g/n [wifi4] (2.4GHz)
WiFi Direct, hotspot
DLNANot supportedNot supported
GPSA-GPS, GeoTagging, GLONASS, GALILEO, BeiDou, QZSSA-GPS, GeoTagging
NFCSupportedNot supported
Infrared portNot supportedNot supported

🧭 Sensors

Oppo Reno4 Z 5GBlu Star 4.5 (S450U)
SensorsAccelerometer
Ambient light sensor
Compass
Face unlock
Fingerprint sensor (side-mounted)
Gyroscope
Proximity sensor
Accelerometer
Ambient light sensor
Compass
Proximity sensor
Vibrating alertSupportedSupported

🔋 Battery

Oppo Reno4 Z 5GBlu Star 4.5 (S450U)
Battery typeLiPo: li-ion polymer (Non removable)Li-Ion: lithium-ion (Removable)
Battery capacity4000 mAh1700 mAh
Charger, watts18W (9V/2A) Wired fast chargingWired charging
Inductive / wireless chargingNot supportedfeature not registered
Talk time autonomy26 hours (1.1 days)feature not registered
Standby360 hours (15 days)feature not registered

➕ Other features

Oppo Reno4 Z 5GBlu Star 4.5 (S450U)
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• Colors: Ink Black, Dew White
• ColorOS 7.2
• 24-bit/192kHz audio
• Case included
• Colors: Black, White, Blue, Pink
• Screen protector included
• Silicon Case included
• BLU Infinite View technology

☢️ Radiation rate

Oppo Reno4 Z 5GBlu Star 4.5 (S450U)
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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