The announcement of the new iPhone 6S and 6S Plus (cue the 6S “Success” headlines) means that once more people will be lining up outside of Apple stores across the nation looking to buy the latest and greatest from Cupertino. But it also means that just as many people are likely looking to get an outgoing iPhone 6 for rock bottom prices. And for good reason: the outgoing model isn’t exactly shabby. Why not take advantage of the lower purchase price if you’re still using an iPhone 5C or 5S?iphone6s

If you’re in the market for a new phone, the buyer’s guide below might help you make the ever important decision of which device to purchase. Do you buy the newest model, knowing that you’ll have the best in the marketplace? Or do you pick up the outgoing model – something that’s nearly as good – and put the savings towards a weekend trip, car bill, nice meal out with a loved one, or any number of other expenses that you may be avoiding? And once you decide which phone is right for you, do you buy the device upfront or pay installments? Here’s the info you need to make a decision!

iPhone 6S v iPhone 6: Which to Buy?

If you’re considering picking up the new model (and aren’t locked into a carrier), T-Mobile is worth a look. And that is because T-Mobile offers the best rate for the new iPhone 6S – better even than Apple. The public can pre-order a new iPhone 6S for just $20 a month for 18 months with T-Mobile’s “JUMP! On Demand” promotion. The iPhone 6S Plus is just $24 a month and both are available with $0 down. It’s a tremendous deal that puts the new phone in reach of most consumers.

At the end of the 18-month period, you can hand the phone back at no additional charge, and upgrade to a new phone with a new contract, or pay $164 more in fees to own the phone outright. That works out to $596 for the iPhone 6S Plus if you choose to purchase it at the end of the contract, which undercuts Apple’s starting price of $749 rather significantly. Certainly not a bad deal. By comparison, if you want to pay installments through Apple, you can expect to pay at least $32 per month.

Of course, you can also pick up the outgoing iPhone 6 or 6 Plus if having the latest and greatest isn’t a priority for you. Both models are now available for $100 off under contract ($99 and $199, respectively), with the older 5S model now offered free under contract. If you would like to purchase the phones out of contract, you can do so as well. Apple will offer installment plans starting at $23 per month for the iPhone 6 and $27 per month for the iPhone 6 Plus. You can then choose the carrier that you like and sign up for a plan that suits your needs.

Now, on to the specs. The 6S runs Apple’s new 64-bit A9 chip while the outgoing 6 uses the company’s previous A8 chip. Both are powerful processors, of course, but the A9 is obviously the better of the two. The 6S has also been designed to operate Apple’s new iOS 9 from the get-go, while the outgoing 6 runs iOS 8 as standard (with the option to upgrade to iOS 9). And then there are the cameras. The rear-facing camera jumps from 8mp to 12mp (and now takes 4K video), while the front-facing camera (perfect for selfies and FaceTime) goes from 1.2mp to a quite impressive 5mp. Not surprisingly, the 6S is the better of the two phones. Which phone is right for you will depend largely on your personal preferences.

Really, You Can’t Go Wrong

Whether you opt for the outgoing iPhone 6 or decide to pick up the new iPhone 6S Plus, you can rest easy knowing that you’re getting one of the best (if not the best) phones in the market. Really, it’s a matter of price and priority. What do you want to spend and how important is it to you that you have the latest model? If you do want the new 6S, it’s in your best interest to consider a switch to T-Mobile, if only for the cost-savings that it will provide. But at the end of the day, you are truly spoiled for choice. If you’re a smartphone fanatic, now is a good time to be a consumer!