ASUS Zenfone 4 Dual-SIM ZE554KL (SD630, 4GB/64GB, TW, Midnight Black)

Save 40%

Unlocked (what's this?)

What is an "Unlocked" phone?

Many mobile phones are designed to use a Subscriber Identity Module (SIM) card to store subscriber data. These SIM cards are issued by the carrier and provide voice & data service to the phone. "Locked" mobile phones will only recognize SIM cards from the carrier that originally provided the phone. Almost all mobile phones provided by local carriers are locked to that carrier’s network and cannot be used on other networks.

"Unlocked" mobile phones can use SIM cards from any carrier that supports the phone's operating frequencies. This makes them more convenient for switching carriers & traveling abroad. As many carriers also require customers to purchase pricey 2-year data contracts with new smartphone purchases, buying an "unlocked" phone can also be cheaper in the long run, as it allows customers to use "pre-paid" and "no-contract" SIM-card options or to switch to a new carrier when a cheaper, better plan becomes available.

  • HK$1,948 HK$3,249

  • Free Shipping Available

  • In Stock Now

Breath easy with EXPANSYS extended service plans.

You love your new phone so why don’t you protect it.

With our extended 12-month service plan your investment will be safe and secure and you can rest easy.

Because life is unpredictable, extend your device protection from 6 months to 12 months and protect your device from mechanical and electrical failures that just sometimes happen.

For a minimum investment, you can ensure the safety and security of your purchase for an additional 6 months.

For just a few extra dollars each month; your device will always be safe and secure when you purchase the EXPANSYS Extended Service Plan. You can’t beat that value.

Why You’ll Love Our Extended Service Plans

  • Protects Your Device From Mechanical and Electrical Failure, Including Touchscreen Failure, Power-On Issues, Antenna/Wi-Fi Failure, & much more
  • Free Shipping On Returns
  • If we can’t fix your device, we’ll get you a replacement at no extra charge!

Don’t get stuck with expensive out of warranty repairs.  Get protected today!  

*Extended Service Plans must be purchased with device, and cannot be added once item has shipped
*Extended Service Plans cannot be refunded once item has shipped
*Extended Service Plans cannot be applied to b-stock, refurbished, or open-box items
*Extended Service Plans will not cover return shipping outside of the original delivery country
*Extended Service Plans do not cover accidental damage including damaged caused by drops, water, bending, or damage caused by installed applications or rooting

For complete terms and conditions of EXPANSYS warranty services, please click here.


Check out with PayPal
  • EXPANSYS Code: 306101
  • , EAN: 4712900775235
  • , Mfr: ASUS_Z01KD_BLK
  • , Brand: ASUS

Email Alerts

Add me
standard warrantyFree shipping

ASUS Zenfone 4 Dual-SIM ZE554KL Features

What we like about the ASUS Zenfone 4 ZE554KL

  • Dual-lens camera with Sony IMX362 sensor and a 120° wide-angle lens
  • Ultrafast 0.03s dual-pixel PDAF sensor with Qualcomm Spectra 160 ISP
  • High-capacity 3300mAh battery with BoostMaster fast charging

* Both SIM card slots support 3G WCDMA / 4G LTE network band. But only one SIM card can connect to 3G WCDMA / 4G LTE service at a time.

Unboxing Photos

Please check out our Facebook album for reference.
  • Shipping Weight: 0.43kg

Technical Details

  • System: Android 7.0 with ASUS ZenUI
  • Processor: 2.2 GHz / Octa Core / Qualcomm Snapdragon 630 / GPU: Adreno 508
  • Memory: Internal: 64 GB / RAM: 4 GB / Slot type: microSD / Max. slot capacity: 2 TB
  • Display: 5.5" / IPS display / Resolution: 1920 x 1080 pixels
  • Camera: Primary: 12 MP, Wide: 8 MP / Sony IMX362 / f/1.8, 1.4μm / Dual Pixel PDAF / OIS/EIS / Video: 4K UHD / Front: 8 MP
  • Network: 4G: LTE Band 1/2/3/5/7/8/18/19/28/38/39/40/41 / 3G: 800/850/900/1800/1900/2100 MHz / GSM: 850/900/1800/1900 MHz
  • SIM card: Type: nano-SIM / Slot: Hybrid dual SIM (Optional: microSD)
  • Wireless: Bluetooth: 5.0 / Wi-Fi: 802.11 a/b/g/n/ac / NFC
  • Connection: Jack 3.5 mm / USB Type-C
  • Location: GPS, aGPS, GLONASS, BeiDou
  • Sensors: Ambient light sensor, Digital Compass, Fingerprint, G-sensor, Gyroscope, Hall sensor, Proximity sensor, RGB sensor
  • Battery: 3300 mAh (Built-in) / BoostMaster Fast Charging
  • Weight: 165 g
  • Dimensions: 155.4 x 75.2 x 7.5 mm
  • In the box: ASUS ZenFone 4 ZE554KL, ASUS earphone with Mic, USB Type C Cable, Bumper, USB Power Adapter, Documentation

User Reviews

  • by Riuny
  • Tuesday, 24 July, 2018

Pretty decent

Great performance with acceptable price. I like it.

  • by Anonymous
  • Friday, 16 February, 2018


これまでZE551MLを使っていましたが、アプリが頻繁に落ちるようになったのでZE554KLを購入。 アプリの反応も良く、非常に快適に使えています。 特にバッテリーの持ちが良いのが素晴らしい。予備バッテリーを使わなくとも丸一日もちます。

  • by Anonymous
  • Friday, 23 February, 2018



Support Forums

Topic Latest Post
All Threads

Battery replacement.

by user9740242 on 16 September 2018 at 09:40

Replies: 0
Views: 15

by user9740242
on Sun Sep 16, 2018 9:40

Shipping to Singapore

by jlfw1990 on 06 November 2017 at 17:05

Replies: 3
Views: 746

by Derek_W
on Tue Nov 7, 2017 5:17

availability in Korea

by user9740242 on 11 September 2017 at 14:46

Replies: 1
Views: 1,094

by Derek_W
on Tue Sep 12, 2017 3:38