Pineng PN983s 10000mAH Lithium Polymer Slim PowerBank
Obsolete but reliable
In 2018, you probably can find a better option (I find integrated cable as a superb feature) but if you have this lying around in your house, feel free to use it because it won’t let you down!
Good storage capacity and dual usb outlet. You can charge up to two devices. Great product!
Apple iPhone 6s
Still relevant in 2018
Being the latest iPhone model with standard headphone jack (Apple removed the jack on iP7 and above) is already a big plus compared to the other iPhone models.
Not IP rated (not proofed from water or dust) compared to iP7 and above but considering their price, this model is still a bang for your bucks.
Apple iPhone 5s 16GB
Good phone for starter
If you have small hands and often opt for one-hand operation for phone then 5s is the answer. Reasonably cheap in 2018, 16gb is just enough for light use. If you’re thinking of rewarding your highschool kids with entry-level phone, this is the one.