The free eBay mobile app allows you to keep in touch with items you're buying, selling and watching while on the move, and also permits users to upload listings direct from the device.
However, if you're the proud owner of a Samsung GALAXY S4 or GALAXY Note 8.0 you have plenty of other advantages over the rest of the bidding field.
Here are 10 ways to ensure you get the most from your "For Sale" sign and never miss out on that must-have item again.
1.Working out the cores
Here's the situation: you've just received that dreaded email that sends panic through the veins of every eBay user: "Outbid notice: Bid Again for Backstreet Boys Millenium poster."
It gets worse. There's less than a minute to go in the auction. In that time you need to exit the email app, fire up the eBay app, navigate to the item and make a bid.
On lesser devices, you'd be bang out of luck. Luckily the GALAXY S4 and GALAXY Note 8.0 both have powerful quad-core processors that can handle the above with enough time to do a celebratory dance as the auction closes. All together now: "Everyboddddddy, Rock your body!"
2. Don't let that item out of your sight with Multi Window
The Samsung GALAXY Note 8.0 tablet and GALAXY S4 smartphone come with an awesome multitasking feature called Multi Window, which allows you to keep two apps open and on the screen running concurrently.
Head to the eBay mobile site via your web browser to keep an eye on your item while watching YouTube videos, sending emails, or catching up with your Twitter feed.
To enable Multi Window, illuminate the icon in the quick settings menu, access the sidebar and drag the apps to sit on the top or bottom of the screen.
3. Beautiful photos to show your item in perfect detail
Remember what a hassle adding an item to eBay used to be? You'd have to take photos on your digital camera, transfer them to your computer and then add them to an item listing.
Now all that can be done on the eBay app using your device's camera. The Samsung GALAXY S4 has a superb 13-megapixel camera with HDR and Panorama modes, so when you list your item as being in 'mint condition' you can back that up with brilliantly detailed, crisp and clear photos.
Make sure you set the sensor at the maximum possible resolution by opening the camera app and hitting Settings. There's nothing that puts off a potential buyer more than blurry photos that look like they were taken with a webcam circa 1995.
4. 4G LTE: For when every second counts
In the pre-app era we'd be scared to leave the house in case someone sniped our bid at the last second, but the eBay mobile app for the Samsung GALAXY Note 8.0 and Samsung GALAXY S4 puts you in command.
Not only will you be able to keep track of your desired item on the go, but with the GALAXY S4 and the 4G LTE version of the GALAXY Note 8.0 both rocking superfast connectivity, you've got an advantage on the rest of the field.
When you've been outbid with 10 seconds to go, timing is everything and 4G could be the difference between you scooping an awesome bargain or regretting missing out on that rare Creedence Clearwater Revival vinyl.
5. Making yourself available
If you want to be an efficient and profitable eBay seller then you need to make yourself available to the bidding masses.
If a potential buyer wants to know if that signed 'Craig from Big Brother' photo has a certificate of authenticity, you better answer him or her. And quickly!
One way to ensure you receive all the questions from buyers is to ensure your emails are coming through regularly. Head to the email settings on your device and change the incoming email frequency to "every five minutes" for those occasions when a major eBay deal is being negotiated.
This will mean your GALAXY S4 or GALAXY Note 8.0 will check for new emails every 5 minutes. Plus, if you're a Gmail user, that app has push email, meaning you'll be notified as soon as they arrive.
6. Get creative with the S Pen and annotations
The S Pen on the GALAXY Note 8.0 and its ability to annotate screens and photos is one of the device's calling cards. It comes in particularly handy when trying to make your eBay listing stand out from the crowd.
Let's face it, there are hundreds of people selling old smartphones after upgrading to a GALAXY S4 and you want your listing to stand out!
Use your Note 8.0's S Pen to add in handwritten annotations or to draw around any image or screen you've captured, to perfectly crop out the bits you don't want.
7. Use eBay widgets
The eBay Mobile app is amazing, but there's an even quicker way to access your buy/sell listings, messages and watched items.
With the extra screen real estate on the 5-inch Samsung GALAXY S4 and the 8-inch GALAXY Note 8.0, there's plenty of room on your home screen for eBay Widgets too.
With one tap on the 'Sell' icon you can begin listing an item. On a separate widget you can access reminders such as 'Item ending soon,' read messages from other eBay users and navigate straight to saved searches.
If you're in the market for a bargain, check out the Deals widget too. You must have the eBay app installed as well, but this is a great-time saving companion.
8. Harness the power and don't get caught short
On-the-go access to eBay using devices such as the GALAXY S4 and Note 8.0 has freed us from the shackles of the laptop and desktop PCs when bidding on items.
However, picture this nightmare scenario. You forgot to charge your device last night, you're entering the red zone and that item ends in two hours.
Thankfully, both the S4 and Note 8.0 have a great Power saving mode that will keep them alive long enough to secure that bargain Weber Grill you need in case the sun shines in August.
Here you can disable things like haptic feedback, limit the performance of the CPU and adjust the amount of power used by the screen. You can toggle Power saving mode on and off in the notifications bar, and long press the icon to fine-tune the settings if desired.
Being stuck in a meeting at work when an item ends in 10 minutes can be more torturous than being sticky-taped to Bruno Mars.
You can't check your phone, through fear of a Darth Vader-style death grip from the boss. However, you can use the force in another way, thanks to the Air Gesture feature on the GALAXY S4. While the device is locked, wave your hand over the screen like Obi Wan and coyly brush your hair out of your eyes in one motion.
That will reveal notification icons as well as the time and any missed calls. If you see the eBay icon, make your excuses and dash to the bathroom to up your bid. Remember, these are the collectable Storm Trooper action figures you're looking for...
10. Quick Command with the S Pen on the Note 8.0
The Samsung GALAXY Note 8.0's S Pen is useful for more than just annotating and tapping your way through life.
The Quick Command feature is one of the fastest ways to get to your eBay app without searching through home screens. The idea is to create custom symbols, which you draw to open the app. So in this case, for example, an 'e' for 'eBay' would do the trick rather nicely.
In order to set up a new command, head to Settings > S Pen > Quick Command. Once it's established you can hold down the S Pen button and draw your icon on screen to launch the eBay app.