Score smartphones with deep discounts in this week's roundup of the best phone deals. Take advantage of a significant sale at eBay, grab yourself an unlocked refurb HTC One M9, and much more!

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Unlocked Smartphones at eBay

Take your pick from a variety of phones during this eBay sale and upgrade your device without breaking the bank. All phones are under $299, with prices starting at $28. Even better, all orders qualify for free shipping. Discounted brands include Apple, Samsung, Motorola, LG, and more. One of our top picks is this open-box Unlocked Apple iPhone 5s 16GB Smartphone for $199.95, a $49 savings.

Please note that warranty information is available on individual product pages.

Refurb Apple iPhone 6s 16GB Smartphone for AT&T

Upgrade to the highly-rated iPhone 6s for less with this refurbished 16GB model for AT&T. This Editors' Choice pick is at the lowest total price we could find for a refurb by $101, as well as being $200 under the price of a new unit! It's available in Space Gray, Silver, or Rose Gold.

Of note, no warranty information is provided.

Refurb Unlocked HTC One M9 Android Smartphone

Snag an Android phone that receives high praise for its design, sound, and display. The HTC One M9 earned a rating of 8.0 from CNET, and the refurb is currently at the best price we've seen without a contract.

It features a Qualcomm Snapdragon 810 2GHz octa-core processor, 5" 1920x1080 (1080p) touchscreen LCD with Corning Gorilla Glass, 3GB RAM, 32GB memory, 20-megapixel rear camera, UltraPixel front camera, 4K video recording, 802.11ac wireless, Bluetooth 4.1, and Android 5.0 OS (Lollipop). It's compatible with AT&T and most other GSM networks.

Please note that no warranty information is provided.

Open-Box Unlocked Moto X 16GB 4G LTE Smartphone

The Moto X received a solid rating of 7.8 when it was released, and it earns praise for its expandable storage, loud front speakers, and quick charging. However, it was criticized for its large size. But where this model really shines is in its affordability. This open-box unlocked handset is only $100!

It features a 4.7" touchscreen AMOLED, 2GB RAM, 16GB internal storage, 802.11n wireless, 10-megapixel rear camera with LED flash, 2-megapixel front camera, Bluetooth 4.0 LE + EDR, and Android 4.2 (Jelly Bean).

Open-Box Unlocked Amazon Fire 32GB Smartphone

Amazon's Fire Phone was a flash in the pan in 2014, and though it received just an okay rating — a 6.9 from CNET — it was heavily criticized for its lack of Google services. Still, this Editors' Choice selection is at the lowest price we've seen. Don't expect the same capabilities as Android or Apple devices, but if you're looking for Amazon integration, this could be the phone for you.

This GSM phone features a 4.7" 1280x720 touchscreen LCD, Snapdragon 800 2.2GHz quad-core processor, 2GB RAM, 32GB internal storage, 802.11ac wireless, Bluetooth 4.0 LE, 13-megapixel rear camera, 2.1-megapixel front camera, 1080p HD video recording at 30 fps, and Fire OS.

Note: A 90-day Yugster warranty applies. This phone is unlocked for GSM carriers only. Also, the countdown timer on the product page does not reflect an actual expiration time and resets daily.