The RX100 V was introduced less than a week ago and the early reviews from press who had a chance to get their hands on the camera are starting to come in. 

DPReview

"That on-sensor phase detection isn't only useful for continuous shooting but it should come into its own when the continuous AF and continuous drive are used in conjunction with one another.

"You can essentially shoot short 5.5K, uncompressed 12-bit Raw video clips, with AF and AE.

"The camera can continue to use PDAF even at its top full-res burst speed of an impressive 24 fps. 24 fps with full AF and AE. Think about it: that's the frame rate movies are shot at. In fact, you are effectively shooting short movie clips, but at 5.5K resolution, with the full dynamic range of the sensor if you're shooting Raw. You can essentially shoot short 5.5K, (almost) uncompressed 12-bit Raw video clips, with AF and AE.

"On top of this, its buffer is now deep enough that it can keep firing away for 150 JPEGs, or ~60 Raw + JPEGs. That's 6.3 and 2.5 seconds of continuous shooting, respectively." -DPReview.com

Imaging-Resource

“One quick note on performance I can say is that the 24fps high speed burst rate is absolutely insane and is blazingly fast. When shooting JPEG files in particular, the camera chews through images frame after frame. Buffer depth seems fantastic. One potential downside to that is that you might need a larger memory card, as the RX100 V will eat through memory in no time with its speedy performance!” – William Brawley, Imaging-Resource.com

Steve Huff Photo

"I started to realize it more and more, this new RX100 V is not only a pocket rocket, but this pocket rocket is now on some serious turbo rocket fuel. It’s amazing what this camera can do, and it does what it does very well. I had ZERO issues, NO lag, no problems. Battery life? In my 8 hours with the camera I had taken hundreds of shots, and still had a tiny but of juice left, and battery life seemed slightly better than the MKIV.

"The EVF was fantastic, the LCD fantastic, the fact that if you shoot at 24 FPS you can at anytime press play and review your image instantly, with no lag or wait. The buffer is so large, there are simply no lags or delays.

"There is nothing NOT to like about this one, and while it lacks only in Dynamic Range, Super high ISO capability, and shallow DOF (compared to full frame and APS-C) it offers so much more than larger cameras in regards to size, portability, ease of use, speed, and response. The IQ is not lacking and it fits in a pocket, a front pocket. What is not to like?" -Steve Huff, SteveHuffPhoto.com

Engaget

"[F]or now, I can tell you that the RX100 V's burst shooting mode is as good as it seems on paper. And you can't help but crack a smile when you listen to that shutter fire shot after shot in quick succession. The sample images we have here were taken at a studio in New York City, which Sony decked with different performers for members of the media to use as subjects." -Edgar Alvarez, Engaget.com

PopPhoto

“Ultimately, the RX100 V feels like an extremely powerful little camera. The increased framerate is nice for fast action, and the beefed-up video features are nice, but the overall speed boost in terms of operation really does make a difference.” –Stan Horaczek, PopPhoto.com

PCMag

“The RX100 III has remained our Editors' Choice premium compact since its introduction. When the IV was released its improvements were mostly video related, and its nearly $1,000 price tag led me to recommend it highly to folks who valued video as much as still image quality. I continued to suggest the RX100 III for those who were ambivalent about videography. The RX100 V is a different story. It carries the same premium cost, but its incredible autofocus system and unheard of 24fps shooting rate are features that photographers shouldn't ignore. The normal litany of lab tests, and some more real-world photography, are needed to give the RX100 V a proper review and rating, but at this very early stage in the game, it looks like a serious contender to oust the RX100 III from its perch as PCMag's favorite premium compact camera.” –Jim Fisher, PCMag.com

CameraLabs

“[T]here's no denying the Mark V is an extremely powerful compact, and the addition of phase-detect AF has taken it beyond rival models, albeit at a high price tag.” –Gordon Laing, CameraLabs.com

The Verge

"The RX100 Mark V’s ability to shoot full-resolution stills at 24 frames per second is practically unheard of in a camera of this size and price. High-end DSLRs have offered fast shooting speeds for a few years now, but the ability to shoot this fast in cameras that hover around the $1,000 mark is exciting. We’re talking about the same frame rate that movies are shot at, one that’s considered a good baseline for how fast images need to be played in succession for our brains to interpret it as a video.

"A number of competing cameras, especially ones from Panasonic and Olympus, have offered modes that let you shoot at up to 30 frames per second. As is the case with the RX100 Mark V, it’s a powerful feature in their price ranges. But unlike the RX100 Mark V, those cameras pull it off in a different way. Instead of firing the shutter 30 times in a second, they essentially capture a 30-second video and chop it up into individual frames. This typically results in lower-resolution stills (usually around 8 megapixels), and they are more susceptible to motion blur since the user has less control over the shutter speed and aperture.

"Sony’s cameras, on the other hand, are approaching that speed at full resolution — 20.1 megapixels with the RX100, and 24.2 megapixels with the A6500. You have more control over the look of the photos, and with these new models you can shoot this way for longer." -Sean O'Kane, TheVerge.com