Apple's new iPhones are expected to launch next month - here are 5 important features we want to see

While Face ID certainly has its benefits, there are a few reasons why you might find yourself wishing your iPhone XS still had Touch ID. Maybe it doesn't always unlock as quickly as you want it to when you reach for your phone in the middle of the night. Perhaps it doesn't recognize you when you're wearing sunglasses. (Such instances may be fixable by tweaking the setting that requires your attention for Face ID to work.)

Or maybe, like me, you're just tired of having to pick up your iPhone and hold it up to your face whenever you want to unlock it. This was a key advantage that came with the Touch ID home button found on Apple's older smartphones. If you wanted to check your phone without picking it up, you could simply rest your finger on the button and take a quick glance.

Now that edge-to-edge screens have become so popular on smartphones, many companies have removed the home button to make space for that larger screen. But gadget makers like Samsung have chosen to embed a fingerprint sensor directly into the screen instead. Apple could take a similar approach with the iPhone in 2021, according to TF International Securities' Ming-Chi Kuo, an analyst with a reputation for making accurate predictions about future Apple products. According to Kuo, Apple's 2021 iPhones will have both Face ID and Touch ID, as he said in a recent note obtained by 9to5Mac.

The iPhone X that Apple launched in 2017 represented the company's first iPhone to come with an OLED screen rather than an LCD display.

OLED, which is short for organic light emitting diode, is a type of display technology in which the pixels produce their own light rather than relying on a backlight like LCD screens. In general, OLED displays are capable of producing deeper blacks and better contrast than LCD screens.

Apple's iPhone XS and iPhone XS Max both have OLED screens, while the less expensive iPhone XR has an LCD screen. While the iPhone XR's screen remains sharp and colorful, images and video set against black backgrounds look slightly more realistic on the iPhone XS and iPhone XS Max since its screen can display darker black tones.

It's possible that all three of the new iPhones Apple releases in 2020 — including the successor to the iPhone XR — will have an OLED screen, according to an older note from Kuo reported by 9to5Mac.

Read more: You should change this one setting on your iPhone if you want better battery life

Many smartphones offer fast charging by default, but to experience quicker charging speeds on the iPhone you have to purchase Apple's $29 18-watt charger separately. On phones like the iPhone XS and iPhone XR, you can replenish up to 50% of your smartphone's battery in just 30 minutes with this 18-watt charger, according to Apple. Phones like the Samsung Galaxy S10 and OnePlus 7 Pro come with fast charging by default.

The iPhone's camera is certainly capable of taking crisp, detailed shots in a variety of circumstances. But when it comes to low-light photography, Google's Pixel 3 still outperforms the iPhone thanks to its Night Sight mode. Take a look at the sample photos I took with the Pixel 3a and iPhone XS Max here, which show how the two cameras differ when shooting in a dim environment.