Best Electronic Deals Online

StackSocial offers Udemy's Building iOS Apps From Scratch Without Programming Course for $79. That's $420 under the cost of purchasing this course from Udemy directly. This course teaches you how to use Buzztouch in order to prototype, design, and release apps without coding.

newegg offers the factory-refurbished Logitech Harmony 900 Universal Remote, model no. 915-000030, for $145.99 with free shipping. That's tied with our mention from three weeks ago and the lowest total price we could find by $17. This remote features an "in-cabinet blaster system," which purports to reach devices behind cabinet doors from up to 100 feet away. It features a color touchscreen, charging dock, sculpted backlit buttons, control of up to 15 devices, and more. A 90-day Logitech warranty applies.

All4Cellular knocks up to 90% off select accessories for HTC Amaze 4G. (Discount is reflected on product page.) Plus, take an extra 10% off via coupon code "POTW". That's the best discount we've seen on these accessories at All4Cellular. Shipping adds $2, or get free shipping on orders of five items or more. Offer ends May 20.

A best bet is the T-Mobile Tech21 Impact Protection Flex Gel Shell for HTC Amaze 4G in Teal or Pink (pictured) for $2.45 before the above discount, $2.20 after. With $2 for shipping, that's the lowest total price we could find by $2. It features access to all ports and buttons.

CowBoom offers the used Amazon Kindle Touch WiFi E-Ink 6" eBook Reader, model no. D01200, for $39.99 plus $5 for shipping. That's $24 under the lowest total price we could find for a new unit, although we saw it for $5 less a month ago. It measures 0.34"-thick, features a 6" 600x800 e-ink display, and weighs in at just under 9 oz. It also sports 4GB internal storage, 802.11n wireless, X-Ray (which downloads Wikipedia information along with your books), PDF support, and more.

Note: No warranty information is available. This used unit may be missing accessories and have scuffs, blemishes, or scratches.

newegg offers the TekNmotion Air Capsule Bluetooth Portable Speaker in Green (pictured), model no. TM-AIRCG, for $24.99 with free shipping. (Amazon sells it for the same price via Prime.) That's the lowest total price we could find by $15. It features a rechargeable 400 mAh lithium-polymer battery with LED indicators, 40mm drivers, Bluetooth A2DP connectivity, 3.5mm auxiliary input, and more.

newegg also offers the Divoom Onbeat-X1 Bluetooth Portable Speaker in Black, model no. 000DIONB, or White, model no. 000DIONW, for $29.99 with free shipping. That's the lowest total price we could find by $10. It features a frequency response of 80kHz to 20kHz, 45mm driver, Bluetooth 3.0 A2DP connectivity, 3.5mm and more.

emilyandilly via eBay offers this 12x Telephoto Lens with Mini-Tripod for Apple iPhone 5 in Black for $17.87 with free shipping. That's the lowest total price we could find for a similar item elsewhere by $4, although it was buck less in March. Designed for use with the iPhone 5's camera, this lens features a 12x optical zoom and comes with a mini-tripod, carrying case, and more.

With purchase of a two-year contract, Walmart offers the Samsung Galaxy S 4 16GB Android Smartphone for AT&T in Black or White for $168 with free shipping. That's tied with our mention from last week and $32 less than what AT&T currently charges. This phone features a 5" 1920x1080 touchscreen super AMOLED Corning Gorilla Glass 3 display, Cortex-A15 1.9GHz quad-core processor, 2GB RAM, 16GB memory, 2-megapixel front camera, 13-megapixel rear camera, microSD card slot (up to 64GB) 1080p video recording, 802.11n wireless, Bluetooth 4.0 with A2DP, EDR, and LE, Android OS 4.2.2 (Jelly Bean), and more. Note that a $36 activation fee applies.

Of note, Fry's locations offer it for $149.99, but it is only available in-store.

Panasonic offers the Panasonic 2.1-Channel Sound Bar Home Theater System, model no. SC-HTB370, for $239.99 with free shipping. That's the lowest total price we could find by $28. It features 60 watts of power output per channel through two channels, 6" 120-watt subwoofer, Bluetooth enabled streaming, Dolby Digital, Pro Logic II and Virtual Speaker decoders, and more.

Cameta Camera offers the CTA EN-EL3e Rechargeable Battery for Nikon, model no. DB-EN-EL3e, for $4.95 with free shipping. That's the lowest total price we could find for any en-el3e battery by $3. It's compatible with the Nikon D700, D300, D300s, D90, D80, D70, D70s, D200, D100, D50, and more.

With activation of a new 2-year contract, AT&T offers the Samsung Galaxy Exhilarate 4G Android Smartphone for AT&T, model no. SGH-i577, for 99 cents with free shipping. That's $349 off and the lowest total price we could find for this cell phone. This GSM 4G phone features a 4" 480x800 Super AMOLED touchscreen, 1.2GHz dual-core processor, 1GB RAM, 32GB memory, 5-megapixel rear and 1.3-megapixel front-facing camera, 720p video capture, GPS, Bluetooth 3.0, 802.11n wireless, Google Android 4.0 OS (Ice Cream Sandwich), and more.

Update: Specs corrected.

Amazon offers Prime members the Vibe Sound DJ 750 Noise Reducing Stereo Headphones in Black (pictured), model no. VS-750-BLK, for $5.99 with free shipping. (Non-members can spend $25 or more to qualify for free shipping; otherwise shipping adds $5.74.) That's a buck under our March mention and the best price we've seen for these headphones in any color. (It's also a current price low by a buck.) They feature an adjustable headband, 40mm neodymium drivers, and more.

Want a different color? AltaTac via eBay offers them in six seven other colors for $6.79 with free shipping.

Gear XS via eBay offers the Hype Hi-Fi Bluetooth Stereo Speaker / Speakerphone in Red (pictured) or Black, model no. HY-523-BT, for $44.99 with free shipping. That's $55 off list and the lowest total price we could find. It features a DC 5V rechargeable battery, 3.5mm jack, built-in dual microphone, USB charging cable, 33-foot operating range, and more.

World Wide Stereo via eBay offers the Denon 5.1-Channel 3D Network Receiver with AirPlay, model no. AVR-1713, for $339.99 with free shipping. That's the lowest total price we could find by $10. (For further comparison, we saw an open-box unit for $9 more last fall.) The receiver features 80 watts per channel into five channels, Dolby Digital, Dolby TrueHD, and DTS-HD, USB, six HDMI inputs, and more.

Star-Doo via eBay still offers this 12,000mAh USB External Battery Pack in Blue (pictured) or Pink, model no. PB-A408, for $15.98 with free shipping. (Select each item to see this price.) That's tied with our mention from a week ago as the best price we've seen for any 12,000mAh portable battery charger. (Outside of the price below, it's also $2 under the best price we could find for a comparable battery pack elsewhere.) It comes with several adapters suitable for most types of charging ports, including iPhone, iPad, HTC, and other smartphones.

A close price: 2012FreeCompany via eBay offers a similar model for $16.14 with free shipping.

FutureTrend01 via eBay offers this Multi-Function 1080p HD Spy Camera Alarm Clock for $50.08 with free shipping. That's the lowest total price we could find for a comparable clock by $3. It features a resolution of 1920x1080 at 24 fps, remote control, alarm clock, snooze button, temperature function, TF card slot, and more. Deal ends June 1 at 6 am ET.

TechMatte via Amazon offers the amCase Hybrid Bumper Case for Samsung Galaxy S4 in Black (pictured) or Pink for $5.99. Coupon code "RTEE8NAD" cuts it to $1.95. With free shipping, that's $2 under the lowest total price we could find for a similar case elsewhere. It features access to all ports and buttons.

The Amazon Appstore for Android offers Minecraft Pocket Edition for Android for $3.99. That's $3 below the lowest price we could find for this building with blocks game.

If you haven't claimed it yet, you can receive a $1 Amazon MP3 Credit for free with this download. (It can only be claimed once per Amazon account until December 31.)

db_roth via eBay offers the refurbished Canon Vixia HF R300 1080p Flash Memory Camcorder, model no. 5978B001, for $169.99 with free shipping. That's tied with our March mention and the lowest total price we can find for a refurb by $38. Features include a 3" touchscreen LCD, 32x optical zoom, 1920x1080 (1080p) recording, optical image stabilization, SDXC card slot, HDMI, and USB.

Of note, no warranty information is given.

Adorama offers the Olympus E-P3 Pen 12-Megapixel Micro Four Thirds Digital Camera, model no. V204031BU000, bundled with a 14-42mm Zoom Lens and Olympus Mini-Messenger Bag for $369 with free shipping. That's $10 under our mention from a week ago and the lowest total price we could find by $25. It features a 3" LCD, 1080 60i video, Fast AF, HD movie capture, SDXC card slot, USB and HDMI connectivity, and more.