Apple’s iPhone 11 is here- and it’s mighty enticing if you’re using an iPhone that’s a few years old. Don’t just toss your aging phone in a drawer when you buy it, though. Sell your iPhone! That old hunk of glass is more valuable than you might think.

There are quite a few services that will give you cash or store credit for a used iPhone. We’ve gathered up and compared some popular services where you can trade in an old device for cash or store credit. Most of these services accept Samsung and Google devices, and all of them take iPhones.

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First, Some Tips to Get a High Resale Price

Comparing prices on all these services highlights some tips for maximizing the resale value of your phone. First and foremost, take care of your phone. Buy a good case (check out our case recommendations) and consider a screen protector (AmFilm screen protectors work well). They’ll keep your device looking new.

Make sure you always buy your phone unlocked. That will maximize your resale value. Unlocked phones work on any wireless network that they have the antenna to support. There’s no reason to lock yourself to one carrier. Most stores will list a phone as unlocked, but generally you’ll need to pay full price for it and not buy it locked from a wireless carrier. Generally, unless a carrier tells you a phone is unlocked, it probably isn’t, especially if you buy it on a payment plan.

The last thing before you run off to cash in your old phone is to make sure you back up all your data using iCloud or iTunes. One gotcha to watch out for: If you back up data using iTunes, not iCloud, make sure you back up your text messages, which sometimes include photos and videos that you haven’t saved to your Camera Roll. Remember to unpair your Apple Watch and wipe your phone as well.

1. Best for Pristine iPhones

Swappa

An eBay clone of sorts, Swappa seeks to eliminate some of the problems associated with eBay: high seller fees, poor seller-buyer communication tools, and too many poor-quality devices. To that end, you won’t be able to sell your iPhone here unless it’s in good shape, fully functional with no damage.

So long as your phone meets Swappa’s listing criteria and you’re willing to put in a little effort, this is where you’ll get the most money for your old device.

As you would on eBay, you’ll need to put together a listing with photos. Be sure to take the case off your phone and be honest about the condition. Remember to factor in shipping when setting your sale price.

Currently an iPhone 8 64-gigabyte model sells for $362, with the 256-gigabyte model going for $432. An iPhone XR sells for an average of $576 to $694, depending on the storage capacity.

2. Best for Fast Cash

Decluttr

If you don’t want to spend the time and effort Swappa requires, Decluttr can turn your old iPhone into cash fast, albeit slightly less cash. All you need to do is answer a few questions about the condition of your phone, storage capacity, and carrier lock if any. You can do that through the website or using the Decluttr app.

Once it knows about your phone, Decluttr will make you an offer. Should you accept, you ship your device in and the company inspects. If need be, Decluttr will revise its offer, but you have the option to decline a new offer and get your phone back at no charge.