These are the best Pixel 4 and 4 XL deals

US Mobile's deal is a little different: Instead of saving money on the phone itself, you'll save money on the service -- up to $200 over the course of one year, depending on what plan you choose.

It works like this: Order a US Mobile Starter Kit ($4), then buy an unlocked Pixel anywhere you want, opting for the best deal you can get (like, say, Amazon's $100-gift-card offer). Once the phone arrives, activate it on US Mobile's network. From there you'll get bill credits of up to $16.67 per month for 12 months.

Just make sure to read all the details on the promo page and follow the order and activation instructions.

Whether you choose the Pixel 4 at the standard $799 price or the Pixel 4 XL at $899, you'll receive a $100 Amazon gift card, plain and simple. (Just make sure to choose the appropriate "style" from the four available options. Two of them are just the phone, no gift card.)

Interestingly, this isn't a digital gift card, but a physical one -- and it just so happens to be bookmark-shaped, so you can continue to get use from it after you use it.

Knowing that some customers will want to activate the Pixel 4 on Big 4 carriers and others will prefer to buy the phone unlocked and unactivated, Best Buy has two offers.

First, you can get a $150 Best Buy gift card if you preorder a Pixel 4 or 4 XL and activate it on AT&T, Sprint or Verizon.

Second, you'll get a $100 Best Buy gift card if you preorder an unlocked Pixel 4 or 4 XL -- no activation required. However, if you do decide to activate at the time of purchase, you'll save up to $100.

Verizon's buy-one-get-one deal is appealing if you're looking for two new phones, but just be sure you're aware of all the conditions. For starters, whatever Pixel 4 model you choose as your "first" phone, the "free" one will be a Pixel 4 (64GB). If you want to upgrade, you'll have to pay the difference.

You'll also need a new line of service and an Unlimited plan, and you'll have to pay off the first phone over 24 months. (The second phone is included in the form of credit on your bill.)

Another option, one that's available to both new and existing customers: Trade in an eligible phone for a $450 credit that's applied to your bill over 24 months. This also requires choosing an Unlimited service plan.

Both of these deals are available with a $200 prepaid Mastercard, which is for new customers who switch to Verizon and sign up for an Unlimited plan.

Visible is Verizon's prepaid service, offering a single flat-rate service plan for $40 a month. If you buy your new Pixel from Visible and keep your service active for at least two months, you'll get a $200 prepaid Mastercard. (Note: At press time, Visible had yet to add the Pixel 4 to its roster of available phones, but we expect it to appear shortly.)

This is one of the better deals, I think. You're not roped into a lengthy service agreement, and you're getting a Verizon-backed service plan at a competitive rate. Not happy after two months? Move on to another carrier.