• Amazon acquired Tapzo to expand its Amazon Pay business in India.

• Apple bought Akonia Holographics, which makes lenses for augmented reality devices.

• Outset Medical raised $132 million to develop a new generation of kidney dialysis machines.

Here's a round-up of the most important deals in venture capital from the past week.

Exits

Amazon AMZN acquired Tapzo to help expand its mobile payments business in India, Economic Times reported . Tapzo is a "personal assistant" app that helps users make payments, as well as purchase food and buy transportation tickets. Economic Times reported that Tapzo saw about 15,000 transactions per month on its data card recharging and bill payment services prior to the acquisition, which was reportedly valued at $40 million to $50 million. Tapzo's venture backers included Sequoia Capital, American Express Ventures, RB Investments and Ru-Net.

Apple has acquired Akonia Holographics , a start-up that makes lenses for augmented reality glasses. The deal was seen as a sign that Apple could be developing a headset or glasses that would superimpose digital information onto real world scenes. Prior to the acquisition, Akonia had raised $11.6 million in venture funding from investors including Acadia Woods Partners, according to Crunchbase. The deal marks the second augmented reality acquisition for Apple, after the iPhone maker bought AR software start-up Metaio in 2015.

VMWare VMW is acquiring CloudHealth Technologies , a cloud management platform, in a deal reportedly valued at around $500 million. The start-up had raised $85 million in venture funding from enterprise investors including Kleiner Perkins, SAP-backed Sapphire Ventures, and Scale Venture Partners.

Start-ups

Outset Medical , which is developing a new generation of kidney dialysis machines, raised $132 million in series D funding. CEO Leslie Trigg said she joined Outset after realizing this corner of health care hadn't changed in 30 years. The investment was led by Abu Dhabi's Mubadala, which is looking to get into U.S. health tech, and was joined by earlier backers including Baxter Ventures.

Swiss crypto start-up Dfinity raised $102 million in equity funding from Andreessen Horowitz's crypto fund, Polychain Capital and several other firms to build what it's calling the "World Computer," a decentralized cloud computing network that could challenge the current cloud infrastructure giants, Amazon, Microsoft and Google.

Puls Technologies raised $50 million for its same-day repairs service. Puls (pronounced "pulse") sends technicians to a customer's home to fix cracked or otherwise damaged smartphones and tablets, or to install items like entertainment systems, smart speakers and automated garage door. Temasek led the round, which was joined by the company's earlier backers including Sequoia Capital and Samsung NEXT.