Product Listing

Sony Xperia M4 Aqua: Style over substance

By Hafeez Sim - 2 Jul 2015
Launch SRP: S$498

Overview, design and features


First spotted at MWC earlier this year, the Sony Xperia M4 Aqua is a S$498 mid-range smartphone that looks a bit like a more affordable, plastic version of Sony's new Xperia Z3+ flagship smartphone. In many ways, that's actually pretty accurate. Just like the Z3+, the M4 Aqua boasts a IP68 dust and waterproof build, and at a glance, the two phones actually look remarkably similar, as they both utilize Sony's minimalist OmniBalance design.

That's where the similarities end though. The phone is powered by a mid-range Qualcomm Snapdragon 615 octa-core processor with 2GB RAM and its 5-inch display is unfortunately has a resolution of just 720p. It also has just 8GB internal storage, although it will support microSD cards up to 128GB in capacity. On the back of the phone, instead of the Z3+'s 20MP shooter, you'll find a 13MP rear camera that’s powered by Sony’s Exmor RS mobile sensor with an f/2.0 aperture.

But with the good looks of the Xperia Z series and an IP68 build that's completely unheard of in this price-range, does the Xperia M4 Aqua provide value-for-money or are you better off saving up for a more expensive smartphone? Let's find out.

  Sony Xperia M4 Aqua
  Sony Xperia M4 Aqua
Operating system
  • Android OS, v5.0 (Lollipop)
  • Qualcomm MSM8939 Snapdragon 615 (Quad-core 1.5 GHz Cortex-A53 & quad-core 1.0 GHz Cortex-A53)
Built-in Memory
  • 2GB RAM
  • 5-inch/ 720 x 1280 pixels/ IPS LCD capacitive touchscreen/ 16M colors
  • Rear: 13 MP Sony Exmor RS sensor, 4128 x 3096 pixels, autofocus, LED flash, f/2.0 aperture
  • Front: 5-megapixel
  • Wi-Fi 802.11 a/b/g/n, dual-band, Wi-Fi Direct, DLNA, hotspot, Bluetooth
Storage Type
  • 8GB internal storage
  • microSD, up to 128 GB
  • Non-removable Li-Ion 2400 mAh battery
  • 145.5 x 72.6 x 7.3 mm
  • 136g


Design and handling

One can’t accuse the Xperia M4 Aqua of looking inferior or shoddy despite being a mid-tier smartphone. With a glass front and back, the Xperia M4 Aqua bears more than a passing resemblance to the Xperia Z3+ when viewed at from a distance, although the Xperia M4 Aqua is slightly thicker. The Sony Xperia M4 Aqua comes in three colors: black, white and coral red, so you get to choose instead of being offered just a single color option.

We reviewed the white version of the Xperia M4 Aqua. Notice how much the phone resembles the Sony Xperia Z3.

Having the phone in hand revealed that even though the Xperia M4 Aqua’s body is made from polycarbonate (plastic anyone?), it doesn't look or feel cheap and is actually pretty robust. Despite being slightly thicker than the Xperia Z3, the M4 Aqua sits comfortably in the hand. While the side bezels are quite thin, as with the other Xperia phone models, the top and bottom bezels are quite large, which makes the phone look a bit longer than it actually is and also gives the impression of a smaller screen.

The bottom and top bezels are quite large on the Xperia M4 Aqua.

Sony's signature round metal power button sits on the middle of the right side of the body, so you won’t have to reach too far to turn the screen on. The volume rocker sits right below the power button, and there’s also a dedicated camera button below the volume rocker. The dedicated camera button makes it easy to get shooting quickly as well as shoot underwater, and it’s nice to see that Sony did not skip on this feature despite the Xperia M4 Aqua being a mid-range model.

The Xperia M4 Aqua comes with a dedicated camera button (left), which sits below the volume rocker.

We mentioned shooting underwater because as we mentioned, the Xperia M4 Aqua is waterproof. The phone has an IP rating of 68, which means that it's waterproof (in this case constant immersion beyond 1m) as well as being dustproof. The microSD and SIM card slots are all covered to prevent water from entering, and the best part about the Xperia M4 Aqua is that the micro-USB charging port and the headphone port are water resistant without having to keep them covered with flaps.

Through some form of Sony sorcery, the Xperia M4 Aqua's micro-USB port does not require a cap, but is still waterproof.


Display and audio

The 5-inch IPS LCD display has a resolution of 1,280 x 720 pixels and a pixel density of 293 pixels. It’s not as impressive as top-end models, but it’s still enough to for apps and webpages to look reasonably sharp. Even so, you should take note that there are phones that boast Full HD resolution at lower price points and that works against the Xperia M4 Aqua even though it has a nice design ID and can withstand dirt and water.

As with most Sony displays (including their TV sets), the colors are quite accurate. But the Achilles heel for Sony smartphones still remains; the screen isn’t terribly bright and washes out when you’re outdoors.

Colors are quite accurate, though it's a pity that the Xperia M4 Aqua's display is not bright enough compared to other smartphone models.  

Audio on the Xperia M4 Aqua comes from a single speaker located on the phone's bottom, unlike the pricier Xperia Z series which come with stereo speakers. The speakers on the Xperia M4 Aqua are loud enough to be heard from across a small room, though it does unfortunately sound quite tinny at higher volumes. 


User Interface

The good news is that while the Sony Xperia M4 Aqua runs a customized version of Android 5.0 Lollipop, Sony has kept the customization to a minimum. So besides the pre-loaded wallpapers and widgets, there aren't many things that are different from vanilla Android. You can also download themes to change the look of the UI. 

The bad news is that due to the small 8GB internal storage capacity, with all the bloatware that comes pre-loaded with the phone, you don't really have much space left. This essentially forces you to purchase a microSD card to expand your storage. Out of the box you're looking at a measly 1.21GB available for usage.

There are also "Small apps" similar to Samsung's Mini Apps, which launch small apps on your homescreen that look like widgets without having to access the full-fledged app itself. Opening the task manager will reveal a row of them at the bottom of the screen, though you can never disable them. 

It's a good thing the Xperia M4 Aqua has a microSD slot as the phone comes with a lot of bloatware, which leaves little internal storage memory free.

You can access the Small apps from the task manager screen.

We've opened the Calendar Small app here. Small apps allow for you to resize them too on the homescreen.

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  • Design 8
  • Features 7
  • User-Friendliness 8
  • Performance 7
  • Value 5.5
The Good
IP68 dust and waterproof build
Attractive design
The Bad
Underwhelming camera
Short battery life
HD resolution display
Small internal storage
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