At its Galaxy Unpacked event in Barcelona today, Samsung announced the Galaxy S7 and the Galaxy S7 edge, successors to the Galaxy S6 and Galaxy S6 edge, respectively. After weeks of leaks, Samsung's seventh-generation phones are now official.

Galaxy S6

Galaxy S7

5.1-inch Quad HD

2560×1440, 577 ppi

2560×1440, 577 ppi, always-on display

Network

LTE Cat 6 (300/50Mbps)

LTE Cat 9 (450/50Mbps)

Connectivity

Bluetooth 4.1, NFC

Bluetooth 4.2, NFC

Processors

Octa-core 2.1GHz, 1.5GHz

Octa-core 2.3GHz, 1.6GHz

Rear camera

16MP, ƒ/1.9, 1.12µ pixels

Dual-pixel 12MP, ƒ/1.7, 1.4µ pixels

Front camera

5MP, f/1.9

5MP, f/1.7

Battery

2,550mAh

3,000mAh

Charging

Wired, wireless

Wired, wireless

Connector

microUSB, USB 2.0

microUSB, USB 2.0

Memory

3GB, LPDDR4

4GB, LPDDR4

Storage

32GB, 64GB, 128GB

32GB, 64GB

microSD slot

No

Yes

Height

143.4 mm

142.4 mm

Width

70.5 mm

69.6 mm

Depth

6.8 mm

7.9 mm

Weight

138g

152g

SIM card

Nano-SIM

Nano-SIM

Colors

White, Black, Gold, Blue

Silver, Black, Gold

Preorders begin February 23, and the devices will begin shipping March 11. Before you get your credit card ready, you might want to see exactly what you're buying. The comparison tables below show you what Samsung has changed, comparing the Galaxy S6 to the Galaxy S7 and the Galaxy S6 edge to the Galaxy S7 edge. 

Galaxy S6 edge

Galaxy S7 edge

Quad HD

5.1-inch, 2560×1440

5.5-inch, 2560×1440, always-on display

Edge Screen

577 ppi, 260 pixels

534 ppi, 260-550 pixels

Network

LTE Cat 6 (300/50Mbps)

LTE Cat 9 (450/50Mbps)

Connectivity

Bluetooth 4.1, NFC

Bluetooth 4.2, NFC

Processors

Octa-core 2.1GHz, 1.5GHz

Octa-core 2.3GHz, 1.6GHz

Rear camera

16MP, ƒ/1.9, 1.12µ pixels

Dual-pixel 12MP, ƒ/1.7, 1.4µ pixels

Front camera

5MP, f/1.9

5MP, f/1.7

Battery

2,600mAh

3,600mAh

Charging

Wired, wireless

Wired, wireless

Connector

microUSB, USB 2.0

microUSB, USB 2.0

Memory

3GB, LPDDR4

4GB, LPDDR4

Storage

32GB, 64GB, 128GB

32GB, 64GB

microSD slot

No

Yes

Height

142.1 mm

150.9 mm

Width

70.1 mm

72.6 mm

Depth

7.0 mm

7.7 mm

Weight

132g

157g

SIM card

Nano-SIM

Nano-SIM

Colors

White, Black, Gold, Blue

Silver, Black, Gold

 

Compared to its predecessor, when you go with the S7, you get more power and features, but a slightly thicker and heavier device. For the S7 edge, the same applies, but you also get a much bigger screen. You just have to decide whether those trade-offs are worth it.