ASUS ZenFone 6 vs. ASUS ZenFone 2 (ZE551ML)

Phone Comparison, Reviews and Tests

Detailed comparison and review of ASUS ZenFone 6 and ASUS ZenFone 2 (ZE551ML). With our comprehensive overview, you can simply compare sizes, functions, but also other key features of both phones and easily decide which one is the right choice for you. Our goal is to help you identify the main differences between products and find the phone that best fits your needs and expectations.

Phone Specifications Comparison

ASUS ZenFone 6 vs. ASUS ZenFone 2 (ZE551ML) Comparison Chart
DESIGN AND DIMENSIONS ASUS ZenFone 6 ASUS ZenFone 2 (ZE551ML)
Product Type Smartphone Smartphone
Manufacturer Model Number - ZE551ML
Form Factor Touch Touch
Height 166.9 mm 152.5 mm ASUS ZenFone 6 has greater height than ASUS ZenFone 2 (ZE551ML).
Width 84.3 mm 77.2 mm ASUS ZenFone 6 has greater width than ASUS ZenFone 2 (ZE551ML).
Depth 9.9 mm 10.9 mm ASUS ZenFone 6 is narrower than ASUS ZenFone 6.
Weight 196 g 170 g ASUS ZenFone 2 (ZE551ML) is lighter than ASUS ZenFone 6.
Body Colour Charcoal black | Black | Champagne gold | Cherry Red | Pearl white Grey
Waterproof (Water-resistant) - -
SAR Value 0.4 W/kg (body), 0.37 W/kg (head) 0.87 W/kg (body), 0.92 W/kg (head)
Connector Type Headset jack - mini-phone 3.5mm
USB
Headset jack - mini-phone 3.5mm
Micro-USB - 5 pin Micro-USB Type B
SIM Card Type (Size) Micro SIM Micro SIM
SIM Card Qty Dual-SIM Dual-SIM
DISPLAY ASUS ZenFone 6 ASUS ZenFone 2 (ZE551ML)
Display Type LCD display LCD display
Display Technology IPS IPS
Screen Size (Display Size) 6" 5.5" ASUS ZenFone 6 has larger screen size than ASUS ZenFone 2 (ZE551ML).
Screen Resolution (Display Resolution) 1280 x 720 pixels 1920 x 1080 pixels ASUS ZenFone 2 (ZE551ML) has better screen resolution than ASUS ZenFone 6.
Display Format HD Full HD
Pixel Density - 400 ppi
Display Protection (Screen Protector) Fingerprint-resistant oleophobic coating, Corning Gorilla Glass 3 (scratch resistant glass) Fingerprint-resistant oleophobic coating, Corning Gorilla Glass 3 (scratch resistant glass)
PROCESSOR ASUS ZenFone 6 ASUS ZenFone 2 (ZE551ML)
Processor Type (CPU) Intel Atom Intel Atom
Processor Number Z2580 Z3560
Clock Speed 2 GHz 1.83 GHz ASUS ZenFone 6 has higher clock speed than ASUS ZenFone 2 (ZE551ML).
Processor Core Qty Dual-core Quad-core ASUS ZenFone 2 (ZE551ML) has higher processor core quantity than ASUS ZenFone 6.
64-bit Architecture - Yes ASUS ZenFone 2 (ZE551ML) has 64-bit architecture.
Graphics System (GPU) PowerVR SGX544MP2 PowerVR G6430
MEMORY ASUS ZenFone 6 ASUS ZenFone 2 (ZE551ML)
RAM 2 GB 2 GB Both phones have the same RAM size.
Internal Memory Size (Storage Capacity) 16 GB 16 GB Both phones have the same internal memory capacity.
Supported Flash Memory Cards (Expandable Memory) microSDHC, microSDXC - up to 64 GB microSDHC, microSDXC - up to 64 GB
CAMERA ASUS ZenFone 6 ASUS ZenFone 2 (ZE551ML)
MAIN CAMERA
Number of Main Cameras 1 1
Sensor Resolution 13 Megapixel 13 Megapixel Both phones have the same camera resolution.
Lens Aperture - F/2.0
Focus Adjustment - Automatic
HDR Mode - Super HDR
Camera Modes - Panoramic pictures, night mode, wide selfie mode, Beauty mode
Face Recognition (Face ID) - Face detection ASUS ZenFone 2 (ZE551ML) has face detection.
Light Source - Dual LED flash
Video Resolutions 1920 x 1080 (1080p) 1920 x 1080 (1080p)
Camera Features (Functions) - Zero Shutter Lag, Blue Glass Infrared Filter, By Pixel Super Resolution technology
FRONT CAMERA
Number of Front Cameras 1 1
Sensor Resolution (Front) 2 Megapixel 5 Megapixel ASUS ZenFone 2 (ZE551ML) has better front camera resolution than ASUS ZenFone 6.
BATTERY AND CHARGING ASUS ZenFone 6 ASUS ZenFone 2 (ZE551ML)
Battery Capacity (Battery Size) 3300 mAh 3000 mAh ASUS ZenFone 6 has larger battery capacity than ASUS ZenFone 2 (ZE551ML).
Standby Time 398 hours -
Talk Time 1680 minutes -
Run Time Details Talk (WCDMA): up to 1680 min
Standby (WCDMA): up to 398 hrs
-
Battery Technology Lithium Lithium polymer
CELLULAR ASUS ZenFone 6 ASUS ZenFone 2 (ZE551ML)
Technology WCDMA (UMTS) / GSM WCDMA (UMTS) / GSM
Mobile Broadband Generation 3G 4G ASUS ZenFone 2 (ZE551ML) has more advanced generation mobile network.
Operating System Android 4.3 (Jelly Bean) Android 5.0 (Lollipop)
User Interface ASUS ZenUI ASUS ZenUI
Navigation - GPS, A-GPS, GLONASS, BeiDou
COMMUNICATIONS ASUS ZenFone 6 ASUS ZenFone 2 (ZE551ML)
Data Transmission GPRS, EDGE, HSDPA, HSUPA, HSPA+, DC-HSPA+ GPRS, EDGE, HSDPA, HSUPA, HSPA+, FDD-LTE
2G Band 850 GSM, 900 GSM, 1800 GSM, 1900 GSM 850 GSM, 900 GSM, 1800 GSM, 1900 GSM
4G LTE Band - Band 1, Band 2, Band 3, Band 4, Band 5, Band 7, Band 8, Band 17, Band 20
4G LTE Frequency - FDD 2100, FDD 1900 PCS, FDD 1800+, FDD 1700 - 2110 AWS, FDD 850, FDD 2600, FDD 900, FDD 700b, FDD 800 DD
Wireless Interface IEEE 802.11b/g/n IEEE 802.11a/b/g/n/ac
Bluetooth Bluetooth 4.0 Bluetooth 4.0
Bluetooth Profiles A2DP -
NFC - Yes ASUS ZenFone 2 (ZE551ML) has NFC reader for mobile payments.
Communication Features Mobile Email client, Internet browser -
Messaging Services SMS, MMS SMS, MMS
MEDIA ASUS ZenFone 6 ASUS ZenFone 2 (ZE551ML)
Supported Digital Audio Standards AAC, MP3, AAC +, OGG -
Supported Digital Video Standards MPEG-4, 3GP, H.264 -
FEATURES ASUS ZenFone 6 ASUS ZenFone 2 (ZE551ML)
Phone Functions Speakerphone, call timer, conference call, vibrating alert Speakerphone, call timer, conference call, flight mode, vibrating alert
Sensors Accelerometer, ambient light sensor, proximity sensor, digital compass, gyro sensor, hall sensor Ambient light sensor, proximity sensor, digital compass, gyro sensor, G-sensor
Personal Information Management Calendar, synchronization with PC, calculator, reminder, alarm clock -
Dual SIM Card Capability Yes -
Additional Phone Features Multitasking, Glove mode, ASUS SonicMaster technology, ASUS TruVivid technology, Power Saving Mode Kids Mode, Glove Touchscreen Operation, ASUS BoostMaster technology
OTHERS ASUS ZenFone 6 ASUS ZenFone 2 (ZE551ML)
Included Accessories Power adapter Headset, power adapter
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