Find the QuantStudio Dx Real-Time PCR System that is right for you. Compare the QuantStudio 5 Dx and the QuantStudio 7 Pro Dx.

Which instrument is right for you?

Applied Biosystems QuantStudio real-time PCR diagnostic systems are designed with clinical laboratories and assay developers in mind. The right system for you depends on your sample throughput, flexibility requirements, and budget needs. Browse the selection guide below, then click on your model of choice for more information.  

Selection guide

QuantStudio 5 Dx Real-Time PCR System

QuantStudio 7 Pro Dx Real-Time PCR System

Providing premium performance at an affordable price, the QuantStudio 5 Dx system is designed to fit seamlessly into your existing clinical workflow to help maximize productivity and results.

Enabling maximum efficiency for molecular diagnostics, the QuantStudio 7 Pro Dx system features the latest technology for full-spectrum qPCR capabilities in a flexible, intuitive, and expandable open system.



Higher throughput when using automated workflow

Thermal block style


Block removal or replacement can be done without tools; use a simple voice command to control an enhanced motorized change mechanism.

Thermal block format

96 well (0.2-mL block)


96 well (0.2-mL block)
384 well (0.2-mL block)


Attached computer



Automation capable



Instrument size

40 x 27 x 50 cm; 27 kg

54.7 x 33.8 x 52.5 cm; 38 kg

Touchscreen size

8.5 inch

12.1 inch

Multiplexing and filters

Up to 6 targets; 21 filter combinations

Up to 6 targets ; 21 filter combinations

Hands-free functionality


Ability to perform basic operations using voice commands

Smart help


On-screen technical help and push-button log and run file delivery to technical support

streamlines issue resolution to help get you up and running faster

Security, audit, and e-signature functionality



Third-party vendors

Thinking of choosing an instrument from a third-party vendor? Get the facts first.

In today’s challenging economic environment, reduced-cost proposals from third-party instrument and maintenance providers might appear to be attractive choices. However, these alternatives are not authorized vendors of Applied Biosystems instruments and may cost you more money in the long run and cause you to sacrifice on quality.


Don't let your budget limit you, we have options, from refurbished to new, we got you covered.


As a valued Applied Biosytems customer, we encourage you to question the representatives of any company that claim they can service and support Applied Biosystems instruments. Claims from third-party instrument and service vendors can be misleading.


For In Vitro Diagnostic Use.