Shark Ion P50 debuted, termed as Cord-Free Powered Lift-away. It sells for $469.99, with a 5-year guarantee.
1 3 - Shark ION P50—A Trial in Cordless Upright Vacuum
It goes cordless, compared with Shark’s Lift-away model——Shark’s fist product in North America, which enables Shark to grow into a mainstream brand.
2 - Shark ION P50—A Trial in Cordless Upright Vacuum
Let’s take a brief look at product features:

1. It comes in upright, stick and hand-held modes.
3 1 - Shark ION P50—A Trial in Cordless Upright Vacuum
It features a larger dust cup, anti-allergen complete seal technology and 50 minutes of cleaning
4 1 - Shark ION P50—A Trial in Cordless Upright Vacuum
Highlighting Shark’s classic double brush head, it can stand and its ground brush is armed with LED lights.
5 - Shark ION P50—A Trial in Cordless Upright Vacuum6 - Shark ION P50—A Trial in Cordless Upright Vacuum
Speed control of the handle
7 - Shark ION P50—A Trial in Cordless Upright Vacuum
Performance parameters:

Size: 10.2 x 12.4 x 44.8 inches
Voltage / Power: 28.8V / 260W
Charging time: 3.5 hours
Dust cup capacity: 0.6L
Noise: 70dB
Duration:
50 min – Lift-Away mode
30 min – Upright on the floor
28 min – Upright on the carpet
18 min – Maximum mode

As shown in the figure below, this model adopts two batteries that are significantly larger than these applied to other lithium vacuum cleaners. 18650 instead of 21700 batteries are used, as I was told.

8 - Shark ION P50—A Trial in Cordless Upright Vacuum

This product means a lot to Shark. Upright models prevail most in North America, while upright models impress consumers with a “big and heavy” image. As the cordless epoch sets in, what kind of vacuum cleaners will replace the traditional upright ones?

Dyson’s handheld models or Shark P50? It is early to say. At least Shark has taken a different path in upright models going cordless.
9 - Shark ION P50—A Trial in Cordless Upright Vacuum
This model is basically satisfactory, as commented by buyers on Amazon.

10 - Shark ION P50—A Trial in Cordless Upright Vacuum
Personally speaking, Dyson and Shark seem the most creative players in the vacuum. Dyson specializes in revolutionary technology innovation, while Shark excels in market research and micro-innovation based on existing products. A research on Shark products and its road to market does good to a vacuum player.