64 bit, 3300mAh battery, 4G: FDD-LTE Band: B1(2100)/B2(1900)/B3(1800)/B5(850)/B7(2600)/B8(900)/, Glass, Basic Description, 2210MHz, Shell Material Metal, System, Color Black, Band 2G: GSM: B2(1900)/B3(1800)/B5(850)/B8(900), SIM Card Dual SIM Card Dual Standby(2 Nano SIM Card + 1 Micro SD Card), OS Android N 7.1.1, Built-in, White, Resolution 1920×1080 pixels, 3G: WCDMA: B1(2100)/B2(1900)/B3(1800)/B5(850)/B6(850)/B8(900)/B19(800), 4G VoLTE Yes, CPU Qualcomm Snapdragon 660 SDM660, 2017, RAM 6GB, TDD-LTE Band: B38(2600)/B39(1900)/B40(2300)/B41(2500), Model ASUS ZenFone 4(6GB+64GB), Whether you can use VoLTE depends on the local carriers, Display Size 5.5 Inch FHD Incell LED Backlight (Typ 600 nits with panel flash) with Gorilla Glass 3 & AS Coating, GPU Qualcomm Adreno 512 GPU, Style Bar, ROM 64GB, [===Not Sure Your Network ?===], B18(800)/B19(800)/B28(700).
Basically copy coupon, view price history or create e-mail price alert. What is best price?
Aliexpress
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Click here to search by yourself. Here are coupons that you can use.
Latest price update (UTC time):
Banggood
Banggood warehouse is located in Hong Kong. CouponsFromChina software could not find any coupon for this product in Banggood.
Link: Banggood product page
Price: $-3
It looks like this item is out of stock in Banggood. If you found it then please send me the link. I will replace it.
Click here to search on Banggood!
Additional Banggood coupons: first page and second page
Old coupons (from the oldest to the newest): 3bgZF46, ZX551ML, plfonall
(probably won’t work, but you can try them out)
Price history and price alert
Here is price history (for all/most countries) for ASUS ZenFone 4 ZE554KL 6/64GB Black. The lowest price was: $169.99.
Price records source(s): Banggood
Click on image to enlarge. 
You can set price alert (for Banggood and Aliexpress (only if product name will be the same as on Banggood and I will post it on social media though, so it’s more like Banggood price alert)).