HTC has just announced the HTC One M8 smartphone which replaces the less-than-a-year-old HTC One with a larger and more powerful handset.
But is the HTC One M8 any match for Apple's latest impressive offering, the iPhone 5S? Which of these high-end smartphones should the discerning consumer go for?
Let's break down the spec differences and take a look.
The most obvious change HTC has made is to increase the size of the display.
Phones are getting bigger every year, and HTC clearly didn't want to get left out of the trend. Building on the 4.7in screen of the HTC One by decking out its new HTC smartphone with a 5in display, this is one spec the Taiwanese manufacturer isn't intending to miss out on.
Fans hoping for a significant resolution upgrade will be disappointed, however - there's no 4K or QHD to be found on the HTC One M8, with the resolution staying resolutely at 1,920 x 1,080 (1080p), and a PPI of 441 - lower than the original HTC One.
In comparison, Apple has never been too preoccupied with screen size. While there's been a steady trend towards larger-screened iPhones, the 4in 5S looks practically tiddly in today's market. If media consumption is part of your phone's job, you could do worse than the HTC One M8. Otherwise, the good build and 64-bit chip of the iPhone 5S could come out on top.
CPU, GPU and RAM
In just a few months, a lot changes in the processor world, and this is reflected by the chip HTC has decided to place at the heart of the HTC One M8.
Centre stage is its Snapdragon 801 system on a chip (SoC) which runs at a respectable 2.3GHz. This chip, paired with 2GB of RAM, means the phone shouldn't have any bother smoothly running any app you throw at it. One thing to note: it isn't 64-bit.
Apple's flagship phone, on the other hand, is 64-bit, with its Apple A7 chip pulling out all the stops. However, its paltry 1GB of RAM is starting to look a little small in today's market, and the HTC makes up for its smaller chip by packing its increased working memory into the model.
On balance, both phones have little trouble running apps and their operating systems, though the HTC One M8 could just snag this one with just about double RAM and processing power compared to the iPhone 5S.
Size and weight
That larger screen on the HTC One M8 has in turn led to a larger body. Coming in at a hefty 146.4 x 70.6 x 9.4mm, and an almost sigh-enducing 160g, this phone isn't exactly svelte.
Compared to the iPhone 5S, with its relatively tiny 123.8 x 58.6 x 7.6mnm and hyper-lightweight 112g, the HTC One M8 is a significant chunk of phone, and could put off consumers looking for something a little bit slighter.
More space in the slightly larger body means room for a larger battery, and that's exactly what HTC has included in the new HTC One M8.
The HTC One M8 has a 2,600mAh battery. That should get you as much as 20 hours of talk time, according to HTC. Compare that to the iPhone 5S' comparably small 1,560mAh battery delivering an average of 10 hours talk time, and you should get a not insignificant bump in energy supply.
However, be warned: that extra inch on the screen needs a good bit of extra energy, so it might not go as far as it looks on paper.
HTC broke the cameraphone mould when it released the HTC One, introducing the world to its UltraPixel lens, and proceeded to slap it on the Mini and Max variants of the handset as well.
The main camera of the HTC One M8 has continued that tradition, and frankly leaves the iPhone 5S in the dust. Packed with not one, but two of that same UltraPixel lens, the HTC One M8 can shoot in primitive 3D. It can also refocus immediately after taking one photo to snap another one straight away.
The 5S' 8-megapixel single camera can hardly compare.
As for selfie fans, they'll be pleased to know that the HTC One M8 packs an impressive 5-megapixel front-facing camera, compared to the iPhone 5S' 1.2-megapixel, with both shooting HD video.
Who says Apple fanboys are the vainest?
On the connectivity front, HTC has improve on its WiFi technology for the HTC One M8, now offering ac bands of coverage to its 802.11 a / b / g / n in the HTC One. Compared to Apple, which only offers 802.11 a / b / g / n in its iPhone 5S, this is a slight modernisation, but won't make a whole load of practical difference.
Apart from that move towards modern industry standard, both phones feature Bluetooth v.4.0 and 4G LTE, so there's really no differentiation between them on this front - apart from the fact that iPhone 5S, like its predecessors, lacks near-field communication (NFC) capability. Neither phones feature wireless charging.
Memory and price
HTC has bumped up the memory of the new HTC One M8, offering 16GB / 32GB options. That's not quite as impressive as the top-end storage options for the iPhone 5S, but who's got £700 to splash on extra storage?
The price of the iPhone has always been one of the major sticking points for consumers. For those not wanting to shell out for an over-priced smartphone, its £549 (16GB) / £629 (32GB) / £709 (64GB) price options don't look all that tempting.
The HTC One is pricing SIM free at £535, making it similar to the lowest storage option of the iPhone 5S.
HTC has made some waves with its new addition to the One family, but does it compare to Apple's iPhone 5S?
This one is a little too close to call, and depends a lot on what you're looking for in a phone. If your ideal phone is a wide-screened media consumption device with a sleek build and good camera, the HTC One M8 is a good bet, with its high-end specs and solid build. If you want a nifty and unobtrusive life-partner as a gadget, then the iPhone 5S could snag it. Our tip: do some soul-searching.
Read more HTC One M8 spec comparisons:
Apple iPhone 5S
|HTC One M8|
|Resolution||1,136 x 640 pixels||1,920 x 1,080 pixels|
|Type||IPS LCD||Super LCD3|
Processor and battery
|Family||Apple A7||Snapdragon 801|
|GPU||PowerVR G6430||Adreno 330|
|Claimed 3G talk time||Up to 10h||Up to 20h|
Storage and memory
|Internal storage||16GB /32GB/64GB||16GB / 32GB|
|Video||1080p @ 30fps||1080p|
|Standard||4G LTE||4G LTE|
|Wi-Fi||802.11 a / b / g / n||WiFi 802.11 a / b / g / n / ac|
|Integrated wireless charging||No||No|
|Size||123.8 x 58.6 x 7.6mm||146.4 x 70.6 x 9.4mm|
|Operating System||iOS 7||Android 4.4 KitKat|
|Price (SIM-free)||£549 (16GB) / £629 (32GB) / £709 (64GB)||£535|
|Availability||On sale||26 March 2014|