Nikon Z6 II vs Sony Alpha a5100

This is a full comparison between the cameras Nikon Z6 II and Sony Alpha a5100. We compare them by looking at the categories you see below.

Manufacturing

Nikon Z6 II is manufacturered by Nikon but Sony Alpha a5100 is from Sony. Both Nikon and Sony are well known brands though.

Nikon Z6 II were released 2020 and Sony Alpha a5100 was released 2014. That is a 6 years difference. In tech, this period can be of interest since technology is always improving, etc.

Camera Released
Nikon Z6 II 2020
Sony Alpha a5100 2014

Type of camera

Both these cameras are Mirrorless cameras. No difference there.

Sensors / crop factor

These cameras have different sensors. Nikon Z6 II has a "Nikon FX"-sensor while Sony Alpha a5100 has a "Sony APS-C"-sensor, and their difference in sensors will also affect the crop factor and experience focal length. See the table below.

Camera Focal length, 50mm f/1.8 **
Nikon Z6 II 50 mm
Full-frame sensor
No crop factor/focal length multiplier
Sony Alpha a5100 75 mm
Sony APS-C sensor
Crop factor/focal length multiplier by * 1.5

** Experienced focal length when using a lens such as a common "50mm f/1.8"

Learn more about crop factor and focal length multiplier here:
Camera selection can affect the focal length (Nikon)
Camera selection can affect the focal length (Sony)

Resolution

Nikon Z6 II has a 25 MP (Megapixels) resolution while Sony Alpha a5100 has 24 MP. If we break down this in more detail this is the data behind the numbers:

Camera Megapixels
Nikon Z6 II 25 MP
24337152 pixels
6048 x 4024
Sony Alpha a5100 24 MP
24000000 pixels
6000 x 4000

Nikon Z6 II has a 1 % larger resolution than Sony Alpha a5100. This could give you more details in the picture but also a possibility to crop more in the pictures, afterward while editing the pictures, if needed that is.

ISO range

Nikon Z6 II has a larger ISO-range than Sony Alpha a5100. Nikon Z6 II has an ISO range that stretches from 100 to 51200 while Sony Alpha a5100 has 100 to 25600.

Camera ISO Range
Nikon Z6 II 100-51200
Sony Alpha a5100 100-25600

Autofocus and lens compatibility

Both of these cameras have a built-in autofocus motor. Some lenses, that support autofocus, do not have an autofocus motor of their own but this won't cause any problems with these two cameras.

Here is a complete overview of which lenses work with each camera:
Lens compatibility chart for Nikon Z6 II
Lens compatibility chart for Sony Alpha a5100

Pictures per second

Depending on what you are shooting the FPS, or frames/pictures per second, can definitely be of interest. Nikon Z6 II can shoot up to 14 pictures per seconds and Sony Alpha a5100 can shoot up to 6 pictures per seconds.

Camera FPS (Frames per second)
Nikon Z6 II 14
Sony Alpha a5100 6

Ability to record movies

It is becoming more and more popular to record movies with digital cameras.

In this case, both Nikon Z6 II and Sony Alpha a5100 can shoot movies.

Weight

The weight of the camera can be an extremely important factor, especially if the camera is about to be used, or carried around, for several hours at a time.

Nikon Z6 II weighs 705 gr (equal to 1,55 lb) which is 149% heavier than Sony Alpha a5100 and its 283 gr (or 0,62 lb).

Camera Weight
Nikon Z6 II 705 gr
1,55 lb
Sony Alpha a5100 283 gr
0,62 lb

Nikon Z6 II vs Sony Alpha a5100 Specs

Below you will find the complete and detailed technical specs for both Nikon Z6 II and Sony Alpha a5100, next to each other. Each category of data is a link to an article covering the subject, giving you a deeper understanding so you can better understand the strengths and weaknesses of the two camera models.

Product
Nikon Z6 II
Sony Alpha a5100
Name Nikon Z6 II Sony Alpha a5100
Manufacturer Nikon Sony
Release Date and Price
Nikon Z6 II
Sony Alpha a5100
Release Year 2020 2014
Release Date 2020-10-14 2014-08-18
MSRP 1995 USD 549 USD
Buy it today
Camera Type
Nikon Z6 II
Sony Alpha a5100
Camera Type Mirrorless Mirrorless
Sensor
Nikon Z6 II
Sony Alpha a5100
Sensor Size Full Frame (approx 36 x 23.9 mm)
Also known as "FX"
APS-C (approx 23.5 x 15.6 mm)
Sensor Type BSI-CMOS CMOS
Resolution 6048 x 4024 pixels 6000 x 4000 pixels
Megapixels 25 MP 24 MP
Image Processor DUAL EXPEED 6 Bionz X
Image
Nikon Z6 II
Sony Alpha a5100
ISO Range 100 - 51200 100 - 25600
White Balance Presets 12 10
Custom White Balance Yes Yes
Image Stabilization Yes
(Sensor-Shift)
No
Image Stabilization CIPA Rating 0 stops 0 stops
Uncompressed format RAW + TIFF RAW
Optics & Focus
Nikon Z6 II
Sony Alpha a5100
Autofocus Motor Yes Yes
Autofocus Contract Detect (sensor)
Phase Detect
Multi Area
Center
Selective Single Point
Tracking
Single
Continuous
Touch
Face Detection
LiveView
Contract Detect (sensor)
Phase Detect
Multi Area
Center
Selective Single Point
Tracking
Single
Continuous
Touch
Face Detection
LiveView
Focus Points 273 179
Lens Mount Nikon Z

See Compatible Lenses
Sony E
Focal Length Multiplier FX (Full frame)
No multiplier
Example:
24 mm remains 24 mm
50 mm remains 50 mm
100 mm remains 100 mm
200 mm remains 200 mm
APS-C Sensor (1.5x)
1.5x multiplier
Example:
24 mm becomes 36 mm
50 mm becomes 75 mm
100 mm becomes 150 mm
200 mm becomes 300 mm
Screen & Viewfinder
Nikon Z6 II
Sony Alpha a5100
Articulated LCD Tilting Tilting
Screen size 3.2 3
Screen dots 2100000 921600
Touch screen Yes Yes
Screen type TFT LCD TFT LCD
Live view Yes Yes
Viewfinder Type Electronic No Viewfinder
Viewfinder Coverage 100%
Viewfinder Magnification 0.8x
Viewfinder Resolution 3690000 0
Photography features
Nikon Z6 II
Sony Alpha a5100
Frames per second 14 fps 6 fps
Minimum Shutter Speed 900 seconds 30 seconds
Maximum Shutter Speed 1/8000 seconds 1/4000 seconds
Built-in Flash No Yes
Built-in Flash Range N/A 4 meters
External Flash Yes No
Self-Timer Yes Yes
Time-lapse Yes Yes
Metering modes Multi
Center Weighted
Highlight Weighted
Spot
Multi
Center Weighted
Spot
Exposure Compensation 5 (at 1/3 EV, 1/2 EV steps) 3 (at 1/3 EV steps)
Videography features
Nikon Z6 II
Sony Alpha a5100
Video recording Yes Yes
Video format MPEG4
H.264
MPEG4
XF-AVC
AVCHD
Video resolution 1920 x 1080
3840 x 2160
1440 x 1080
1920 x 1080
Built-in Microphone Yes Yes
Built-in Speakers Yes Yes
Storage
Nikon Z6 II
Sony Alpha a5100
Memory Card Compact Flash Express
SD/SDHC
XQD
Memory Stick Pro Duo
SD/SDHC
Connectivity
Nikon Z6 II
Sony Alpha a5100
HDMI Output Yes Yes
Microphone Port Yes No
Headphone Port Yes No
Wireless Yes
Built-In (802.11ac + Bluetooth)
Yes
Built-in (802.11b/g/n with NFC)
Remote Control Yes (via MC-DC2 or smartphone)
Yes (wired or PC)
GPS No No
Body & Dimensions
Nikon Z6 II
Sony Alpha a5100
Enviromentally sealed Yes Yes
Battery Battery Pack Battery Pack
Battery Details EN-EL15c lithium-ion battery & charger
NP-FW50 lithium-ion battery and USB charger
Battery Life (CIPA) 410 shots 400 shots
Width 134 mm 110 mm
Height 101 mm 63 mm
Depth 70 mm 36 mm
Weight 705 gram 283 gram