At Mobile World Congress 2018 today, Samsung announced the Galaxy S9 and the Galaxy S9+, successors to the Galaxy S8 and Galaxy S8+, respectively. After months of leaks, Samsung's ninth-generation phones are now official.

Preorders begin March 2, and the devices will begin shipping March 16. Before you get your credit card ready, you might want to see exactly what you're buying. Samsung's major highlight is the camera, but there are other improvements worth noting. The tables below show you what Samsung changed, comparing the Galaxy S8 to the Galaxy S9 and the Galaxy S8 to the Galaxy S9+.

Samsung Galaxy S8 vs. Samsung Galaxy S9

Galaxy S8

Galaxy S9

Display

5.8-inch QHD+, 2960x1440, 570ppi

5.8-inch QHD+, 2960x1440, 570ppi

Network

LTE Cat 16

LTE Cat 18

Connectivity

Bluetooth 5.0, NFC

Bluetooth 5.0, NFC

Processors

Octa-core 2.3GHz, 1.7GHz

Octa-core 2.7GHz, 1.7GHz

Rear camera

12MP, f/1.7

12MP, f/1.5-f/2.4

Front camera

8MP, f/1.7

8MP, f/1.7

Battery

3,000mAh

3,000mAh

Charging

Wired, wireless

Wired, wireless

Ports

USB Type-C, headphone jack

USB Type-C, headphone jack

Memory

4GB

4GB

Storage

64GB

64GB, 128GB, 256GB

microSD slot

Yes

Yes

Resistance

IP68

IP68

Biometrics

Iris, Fingerprint, Face

Iris, Fingerprint, Face, Scan

Height

148.9mm

147.7mm

Width

68.1mm

68.7mm

Depth

8.0mm

8.5mm

Weight

155g

163g

SIM card

Nano-SIM

Nano-SIM

Assistant

Bixby

Bixby

Colors

Black, Blue, Gold, Gray, Silver

Black, Blue, Gray, Purple

OS

Android 7.0 Nougat

Android 8.0 Oreo

 

Samsung Galaxy S8+ vs. Samsung Galaxy S9+

Galaxy S8+

Galaxy S9+

Display

6.2-inch QHD+, 2960x1440, 529ppi

6.2-inch QHD+, 2960x1440, 529ppi

Network

LTE Cat 16

LTE Cat 18

Connectivity

Bluetooth 5.0, NFC

Bluetooth 5.0, NFC

Processors

Octa-core 2.3GHz, 1.7GHz

Octa-core 2.7GHz, 1.7GHz

Rear cameras

12MP, f/1.7

12MP (f/1.7-f2.4), 12MP (F2.4)

Front camera

8MP, f/1.7

8MP, f/1.7

Battery

3,500mAh

3,500mAh

Charging

Wired, wireless

Wired, wireless

Ports

USB Type-C, headphone jack

USB Type-C, headphone jack

Memory

4GB

6GB

Storage

64GB

64GB, 128GB, 256GB

microSD slot

Yes

Yes

Resistance

IP68

IP68

Biometrics

Iris, Fingerprint, Face

Iris, Fingerprint, Face, Scan

Height

159.5mm

158.1mm

Width

73.4mm

73.8mm

Depth

8.1mm

8.5mm

Weight

173g

189g

SIM card

Nano-SIM

Nano-SIM

Assistant

Bixby

Bixby

Colors

Black, Blue, Gold, Gray, Silver

Black, Blue, Gray, Purple

OS

Android 7.0 Nougat

Android 8.0 Oreo

  Both the S9 and S9+ are slightly shorter, a tad wider, and a little thicker than the S8 and S8+ -- but these changes are so minor you're unlikely to notice them. Both also have more storage options and faster processors. The rest is largely the same, whether we're comparing the screens or the battery capacities. With the S9+, however, you do get more RAM and dual cameras on the back.