Compare Coolkiller CK68 vs Spring Series Differences Side by Side

This comparison is for buyers deciding between two Coolkiller 65% keyboards with similar core specs. Both offer triple-mode connectivity, gasket mounts, and hot-swap sockets, making the choice hinge on material preferences and specific features. The CK68 stands out with its acrylic case and programmable OLED display, while the Spring Series focuses on a cohesive themed design with PBT keycaps and a slimmer profile.

Model
	61	61	Select a keyboard to compare
Rating	0.0 stars (0 reviews)	0.0 stars (0 reviews)
Purchase Options
Main differences	Has Linear, Tactile, Silent switch options Includes a Yes, OLED display Weighs about 1700 g Sized at 43 x 120 x 350 mm Made with a Acrylic, Plastic case Features PC keycaps Offers Yes, Rgb, South-face, Rgb South-face RGB lighting	Has Linear switch options Includes a Yes display Weighs about 1500 g Sized at 28 x 329 x 145 mm Made with a Plastic case Features PBT keycaps Offers Yes, Rgb RGB lighting
Score	Scores Performance: 45.2 Build Quality: 53.6 Productivity: 69.9 Customizability: 70.3 Portability: 100	Scores Performance: 44.7 Build Quality: 53.4 Productivity: 69.1 Customizability: 69.6 Portability: 89.5
Name	Name Coolkiller CK68	Name Coolkiller Spring Series
Release year	Release year 2023	Release year 2023
Switch Options	Switch Options Linear, Tactile, Silent	Switch Options Linear
Profile	Profile Normal Profile	Profile Normal Profile
Hot Swappable	Hot Swappable	Hot Swappable
Layout Size	Layout Size 65%, 68%	Layout Size 65%
Layout Standard	Layout Standard ANSI	Layout Standard ANSI
Layout Ergonomics	Layout Ergonomics Normal	Layout Ergonomics Normal
Knob Support	Knob Support	Knob Support
Display Support	Display Support OLED	Display Support
Mac/Win Support	Mac/Win Support	Mac/Win Support
Multi-Media Keys	Multi-Media Keys	Multi-Media Keys
USB-C	USB-C	USB-C
USB passthrough	USB passthrough	USB passthrough
Connection	Connection Bluetooth, 2.4 GHz, Wired, Wireless	Connection Bluetooth, 2.4 GHz, Wired, Wireless
Polling Rate	Polling Rate -	Polling Rate -
Battery capacity	Battery capacity 3750 mAh	Battery capacity 3750 mAh
Hall Effect Support	Hall Effect Support	Hall Effect Support
QMK Support	QMK Support	QMK Support
VIA Support	VIA Support	VIA Support
VIAL Support	VIAL Support	VIAL Support
N-Key Rollover	N-Key Rollover	N-Key Rollover
Rapid Trigger	Rapid Trigger	Rapid Trigger
Mount Style	Mount Style Gasket Mount	Mount Style Gasket Mount
Screw in Stabilizers	Screw in Stabilizers	Screw in Stabilizers
Sound Dampening	Sound Dampening	Sound Dampening
Backlight	Backlight Rgb, South-face	Backlight Rgb
Case Colors	Case Colors	Case Colors
Case Material	Case Material Acrylic, Plastic	Case Material Plastic
Keycaps Material	Keycaps Material PC	Keycaps Material PBT
Dimensions	Dimensions 43 x 120 x 350 mm	Dimensions 28 x 329 x 145 mm
Weight	Weight 1700g	Weight 1500g

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Pros and Trade-offs

Your choice depends on what you value more in a keyboard's personality. For a standout visual piece with a functional screen for monitoring or streaming, the Coolkiller CK68 is the compelling option. If you prefer a lighter, more portable keyboard with durable PBT keycaps and a cohesive themed design, the Spring Series is the better fit, especially if you plan to carry it often.

Coolkiller CK68

+Unique transparent acrylic case construction.
+Programmable OLED screen displays system stats and custom GIFs.
+Includes a Poron foam switch pad and sound-absorbing silicone for acoustics.
+Comes packaged in an acrylic box.
+South-facing RGB lighting.

−Heavier at 1700 grams.
−Taller profile at 43mm height.
−Uses Polycarbonate (PC) keycaps, which may show shine faster than PBT.

Coolkiller Spring Series

+Lighter weight at 1500 grams.
+Slimmer profile with a 28mm height.
+Features themed PBT keycaps in a custom CSA V3 profile for better durability.
+Available in multiple layout configurations (65%, 75%, 98%).
+Includes a magnetic storage compartment for the 2.4GHz receiver in some variants.

−Lacks the detailed OLED functionality described for the CK68.
−Plastic case may feel less premium than acrylic to some users.
−Only available with linear switch options in the provided data.

Which Keyboard Is Better for Your Needs?

The keyboards tie in core productivity and gaming scenarios due to shared wireless features and layouts. The Spring Series takes a clear lead for travel thanks to its lower weight and slimmer dimensions. For modding and content creation, the CK68's transparent acrylic build and functional OLED screen provide unique advantages that the themed Spring Series does not match.

GamingTie

•Both offer full-key conflict-free operation according to the Spring Series listing.
•Both support stable 2.4 GHz wireless and wired connections.
•Both feature south-facing RGB on hot-swap PCBs, allowing for switch customization.

OfficeTie

•Both support Bluetooth 5.1 for multi-device connectivity.
•Both are listed with Mac and Windows support.
•Each includes sound-dampening materials like foam and silicone pads.

ProgrammingTie

•Both use a 65% layout with 68-69 keys, requiring layers for function keys.
•Both have hot-swap sockets for customizing switch feel.
•Both offer programmable keys via software according to their vendor pages.

TravelCoolkiller Spring Series

•The Spring Series is lighter at 1500g compared to the CK68's 1700g.
•The Spring Series has a slimmer profile at 28mm height versus the CK68's 43mm.
•Both have similar 3750mAh battery capacity for wireless use.

ModdingCoolkiller CK68

•The CK68's acrylic case offers a unique transparent aesthetic for light mods.
•Its vendor description details specific internal foam layers (Poron foam switch pad, sound-absorbing silicone).
•Both boards are hot-swappable, but the CK68's clear construction may appeal more to visual customizers.

Content CreationCoolkiller CK68

•The CK68's OLED screen can display system stats like CPU/GPU usage and temperature.
•The screen can also show custom GIFs and images, useful for stream overlays.
•Its transparent design with RGB may be preferred for a visually distinctive setup.