Side-by-side technical data

Asus Zenfone 3s Max ZC521TL vs Asus Zenfone 3 Ultra (ZU680KL)

Comparison between Asus Zenfone 3s Max ZC521TL and Asus Zenfone 3 Ultra (ZU680KL): camera, battery, fast charging, display, performance and colors, side by side. More phones from Asus.

The verdict

Your pick: Asus Zenfone 3 Ultra (ZU680KL), ahead on Performance & hardware, Camera and Connectivity. Unless Design & display or Battery & charging decides it for you.

Category
Category Zenfone 3s Max ZC521TL Zenfone 3 Ultra (ZU680KL)
Design & display 5.3 4.5
Performance & hardware 1.7 2.8
Camera 3.7 4.9
Connectivity 4.1 4.5
Battery & charging 6.4 4.7

Which one is for you?

Asus Zenfone 3s Max ZC521TL, if you care about…

Battery Capacity
5,000 mAh
against 4,600 mAh
Weight
175 g
against 233 g
Battery Features
Reverse Charging
against Fast Charging, Rechargeable, Battery Level Indicator
OS Version
7
against 6

Asus Zenfone 3 Ultra (ZU680KL), if you care about…

RAM Capacity
4 GB
against 3 GB
Bluetooth Version
Bluetooth 4.2
against Bluetooth 4.0
Maximum Storage Capacity
128 GB
against 32 GB
Display Pixel Density
324 ppi
against 282 ppi

Specification comparison

Performance

Specification Zenfone 3s Max ZC521TL Zenfone 3 Ultra (ZU680KL)
Processor Model MediaTek MT6750 Qualcomm Snapdragon 652
Processor Process Size 28 nm 28 nm
Graphics GPU Mali-T860 MP2 Qualcomm Adreno 510
Storage Type eMMC 5.1 eMMC 5.1
Maximum CPU Clock 1.5 GHz 1.8 GHz Best value
Maximum Storage Capacity 32 GB 128 GB Best value
CPU Description Octa-core (4x1.5 GHz Cortex-A53 and 4x1.0 GHz Cortex-A53) Octa-core (4x1.8 GHz Cortex-A72 and 4x1.4 GHz Cortex-A53)
Processor Type Octa-Core Octa-Core
64-Bit Processor — Yes
RAM Capacity 3 GB 4 GB Best value
Expandable Storage Yes Yes
Maximum memory card — 200 GB

Design

Specification Zenfone 3s Max ZC521TL Zenfone 3 Ultra (ZU680KL)
Body Colors Gold, Black Silver, Grey, Pink
Body Thickness 8.9 mm 6.8 mm Best value
Body Width 73.7 mm 93.9 mm
Body Height 149.5 mm 186.4 mm
Weight 175 g Best value 233 g
Usable Surface 67.7 % 72.8 % Best value

Battery

Specification Zenfone 3s Max ZC521TL Zenfone 3 Ultra (ZU680KL)
Battery Capacity 5,000 mAh Best value 4,600 mAh
Battery Type Li-Po Li-Ion
Fast Charge Power — 18 W
Battery Features Reverse Charging Best value Fast Charging, Rechargeable, Battery Level Indicator
Talk time 28 h 34 h Best value
Standby time 816 h —

Display

Specification Zenfone 3s Max ZC521TL Zenfone 3 Ultra (ZU680KL)
Display Aspect Ratio 16:9 16:9
Display Technology IPS LCD IPS LCD
Display Diagonal 5.2″ 6.8″ Best value
Display Horizontal Resolution 720 px 1,080 px Best value
Display Vertical Resolution 1,280 px 1,920 px Best value
Display Pixel Density 282 ppi 324 ppi Best value
Display Features — Gorilla Glass 4, Touchscreen

Sensors

Specification Zenfone 3s Max ZC521TL Zenfone 3 Ultra (ZU680KL)
Fingerprint Sensor Placement Front Front

Sensor

Specification Zenfone 3s Max ZC521TL Zenfone 3 Ultra (ZU680KL)
Sensor Features Fingerprint Sensor, Accelerometer, Gyroscope, Proximity Sensor, Compass Fingerprint Sensor, Accelerometer, Gyroscope, Proximity Sensor, Compass

Software

Specification Zenfone 3s Max ZC521TL Zenfone 3 Ultra (ZU680KL)
Operating System Android 7 Android 6
OS Family Android Android
OS Version 7 Best value 6

Connectivity

Specification Zenfone 3s Max ZC521TL Zenfone 3 Ultra (ZU680KL)
SIM Configurations Nano-SIM + Micro-SIM Dual Nano-SIM
Cellular Bands 2G GSM 850, 2G GSM 900, 2G GSM 1800, 2G GSM 1900, 3G UMTS B850, 3G UMTS B900, 3G UMTS 1900, 3G UMTS 2100, 4G LTE B1, 4G LTE B2, 4G LTE B3, 4G LTE B4, 4G LTE B5, 4G LTE B7, 4G LTE B8, 4G LTE B18, 4G LTE B19, 4G LTE B26, LTE B28, 4G LTE B38, 4G LTE B41 2G GSM 850, 2G GSM 900, 2G GSM 1800, 2G GSM 1900, 3G UMTS B850, 3G UMTS B900, 3G UMTS 1900, 3G UMTS 2100, 3G UMTS 800, 4G LTE B1, 4G LTE B3, 4G LTE B5, 4G LTE B7, 4G LTE B8, 4G LTE B18, 4G LTE B19, 4G LTE B20, 4G LTE B26, LTE B28, 4G LTE B38, 4G LTE B40, 4G LTE B41
Cellular Technologies GSM, HSPA, LTE GSM, HSPA, LTE, 4G
Wi-Fi Standards Wi-Fi 802.11a/b/g/n/ac Wi-Fi 802.11a/b/g/n/ac, Wi-Fi 4 (802.11n), Wi-Fi 5 (802.11ac)
Wi-Fi Features Dual Band, Wi-Fi Direct Wi-Fi Direct
Bluetooth Version Bluetooth 4.0 Bluetooth 4.2 Best value
Bluetooth Profiles A2DP, EDR A2DP, EDR, LE
Navigation Systems GPS, GLONASS, BeiDou GPS, GLONASS, BeiDou
Connectivity Features 3.5 mm Audio Jack, FM Radio, microUSB, USB 2.0, USB OTG 3.5 mm Audio Jack, FM Radio, USB Type-C, USB OTG, USB Charging
USB Version USB 2.0 USB 2.0
Max. download speed — 300 Mbps
Max. upload speed — 100 Mbps

Audio

Specification Zenfone 3s Max ZC521TL Zenfone 3 Ultra (ZU680KL)
Microphone Count — 2
Audio Features A2DP, EDR, Loudspeaker A2DP, EDR, LE, Stereo Speakers, 24-bit/192kHz Audio Best value

Technical

Specification Zenfone 3s Max ZC521TL Zenfone 3 Ultra (ZU680KL)
Model numbers X00GD —
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