Samsung just announced the Galaxy S9, and now we’re getting details on how much retailers and wireless carriers are going to charge for it. The cheapest way to get the phone (without a trade-in) is through Samsung itself. But pricing gets surprisingly more complicated when you bring in wireless carriers: AT&T and Verizon are charging extra, but they’re also offering trade-in discounts that can more than offset the price increase.

Here are the details we have so far — we’ll be updating with more info as it comes out. In all cases, preorders start March 2nd and sales start March 16th.

Buy it outright: S9 for $719.99; S9 Plus for $839.99.

Monthly installments: $30 per month for 24 months for the S9; $35 per month for 24 months for the S9 Plus. Prices are a cent more expensive than buying it outright.

Trade in: $50 to $350 off when you trade in a smartphone. You’ll have to trade in last year’s Galaxy S8 or an iPhone 8 or X to get the full $350 (which isn’t a great deal), but you can still get $300 off for an S7 or iPhone 7, and $150 off for an S6 or iPhone 6. The full list of phones is here. One nice bonus — it looks like Samsung will let you get the discount outright, rather than divvying it up by monthly payments.

Buy it outright: S9 for $790.20; S9 Plus for $915.

Monthly installments: $26.34 per month for 30 months for the S9; $30.50 per month for 30 months for the S9 Plus. Those come to the same prices as buying the phone outright.

Buy it outright: $800 for the S9; $930 for the S9 Plus.

Monthly installments: $33.33 per month for 24 months for the S9; $38.74 per month for 24 months for the S9 Plus. You save a few cents paying this way instead of buying outright.

Trade-in: $100 to $350 off the S9 or S9 Plus when you buy it on an installment plan and trade-in a working phone in good condition. In order to get the $350, you have to trade in a Galaxy S8, iPhone 8, or newer (so realistically, only very serious Samsung fans will take this trade-in offer). Other flagships from last year fetch $300; and you can get $200 off for two to three year old phones. Phones like the iPhone SE and Galaxy S5 get $100. The trade-in value is broken up across the life of your payments, so you’re still looking at two years of bills.

Monthly installments: $30 per month for 24 months for the S9; same for the S9 Plus, but it also requires a $120 down payment. That’s $720 in total for the S9; $840 for the S9 Plus.

Trade-in: Up to $360 off an S9 or S9 Plus when purchased on an installment plan. You can trade in flagship phones as far back as an iPhone 6S or a Galaxy S7 and get $360 off. T-Mobile will also give $200 off for trade-ins of flagships as far back as the iPhone 5S and Galaxy S4. The discount comes with bill credits, so you’ll have to stay with T-Mobile to get the full offer.

Monthly installments: $33 per month for 24 months for the S9; $38 per month for 24 months for the S9 Plus. That comes to $792 and $912, which is more expensive than through Samsung.

Trade-in: Sprint says it’s offering up to $350 off with an eligible trade in, but it doesn’t list which phones are eligible. It appears you’ll get the discount spread across your monthly payments for the phone.

Promo: $100 off if you preorder through Verizon, AT&T, or Sprint on March 2nd only. After that, Best Buy is advertising a discount of “up to $100,” which suggests different carriers might receive different discounts.

Trade-in: $150 to $350 off when trading in specific smartphones. You’ll get the most for last year’s top Apple and Samsung phones, and you’ll get the least for the iPhone 6 an Galaxy S6.

Xfinity Mobile

Buy it outright: $719.99 for the S9; $839.99 for the S9 Plus.

Monthly installments: $30 per month for 24 months for the S9; $35 per month for 24 months for the S9 Plus. Prices are a cent more expensive than buying it outright. (They’re also the same as what you’ll get from Samsung itself.)

Trade-in: $200 to $350 off when you trade in an eligible phone. One of the nice perks here is that you can get this discount even if you choose to buy the phone outright — you’re not required to take it month by month on an installment plan that keeps you locked in.