Tech

OPPO RENO 15F Review: A mid-range battery champion

OPPO announced their latest Reno 15 line of smartphones late last month, launching the Reno15 Pro alongside the more budget friendly Reno 15F. OPPO have sent the Reno15 Pro to Scott to take for a spin , while I’m giving the Reno 15F a whirl.

Priced at  $679, the OPPO Reno15 series has been designed around how phones are used today, bringing a new 50MP Ultra-Wide Selfie Camera with front-camera video, one-take clips, group shots, and all-day content creation. 

Powered by a Qualcomm Snapdragon processor, the Reno15 F includes a massive 6,500mAh battery and supports OPPO’s 80W SuperVOOC fast charging. The phone also includes an IP69 dust and water resistance rating so you can take your phone with you anywhere – including using their underwater camera mode.

Hardware

Design

The OPPO Reno 15F is a decently sized phone, thanks in part to the generous 6.57 inch AMOLED display, which has Gorilla Glass for additional durability. It’s lightweight, with a durable plastic body that fits comfortably in the hand with the buttons within easy reach.

There’s almost no bezel around the display, with the 50MP selfie camera sitting in a punch hole notch at the top. 

You can get the Reno15 F in two colour choices: Twilight Black and Aurora Blue, with OPPO sending the very stoic Twilight Black over for review. I love plain colours, however the shimmering Aurora Blue has a stunning colour shift when you tilt it, giving you some gorgeous gold and blue shimmering.

The phone comes with a clear TPU case in the box for protection, letting you still see the colour and design. It’s molded to fit the volume rocker and power buttons on the left, as well as including openings for the USB port and speaker on the base.

The case also evens out the slight bump from the camera island so it will sit flat on a desk without the annoying rocking.

You will need to remove the case to access the SIM tray, which supports dual Nano-SIM (no microSD card support) with eSIM also supported. I used an eSIM for the review and it worked flawlessly throughout. 

Display and Audio

There’s a generously sized 6.57 inch FHD+  resolution AMOLED display on the OPPO Reno15 F, with stereo sound from the earpiece and bottom firing speaker. 

The display is beautiful and colour accurate with 10-bit colour depth and support for 100% of the DCI-P3 colour gamut. The AMOLED display uses a warm and soft colour tone as standard, but you can opt for the more natural colour option in settings. 

The phone has an IP69 dust/water resistance rating and also includes Gorilla Glass to make it more durable. After a couple of weeks the display looks pretty good still, even after daily use storing it in bags, pockets and the occasional bump (!).

Like many phones these days, the display is bright with a 1400nit peak, so you can view it well in broad daylight as well as in lower light without any issue. 

It’s fast, with a 120Hz refresh rate. The refresh is on an adaptive mode as standard, which switches between 60/120Hz as required, giving you a good balance between performance and battery consumption, but you can lock it in at either refresh rate.

OPPO has included an in-display fingerprint scanner on the Reno15 F, just like the rest of the OPPO phones this one is fast, and accurate. 

Performance and Connectivity

Powered by the Qualcomm Snapdragon 6 Gen 1 Mobile Platform with 8GB DDR4 RAM and 25GB of on-board UFS 3.1 storage, the Reno15 F is a decently snappy phone. 

From powered down to ready to go in under 30 seconds, the phone is about on par for mid-range devices. It’s got a few spots of lag when switching apps, and loading games, but for the most part it just runs pretty well. 

Gaming can be a little tricky, with some stuttering on higher-end games, but Candy Crush and WordScape are no problem at all. 

As usual I ran it through the 3DMark and Geekbench tests, and here’s how it went. 

On the connectivity front, there’s 4G/5G wireless, with decent speeds. Of course connectivity depends on your local network, but even out in fairly remote areas the connection has been strong.

Bluetooth 5.1 and Wifi 5 support are included, so you get wireless – even if it caps out at 3.5Gbps, so it’s not super-fast, but it works. 

Camera

There’s a triple sensor camera array on the rear of the OPPO 15F. An 8MP sensor with utra-wide angle  112° Field of View, a Wide-angle 50MP Main camera, and a 2MP macro sensor. There’s also a 50MP front-facing camera in a punch-hole notch in the display. 

The camera system is quite decent, taking great shots in good light without too much issue – just leaving it on auto to point and shoot will net some very good results. The low-light offers a decent quality picture, but doesn’t quite match up to higher-end phones. The ultrawide is decent, without being overly impressive.

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The Macro lens also offers some surprisingly good shots up close.

The underwater photography feature has returned on the Reno15 F, giving you a mode for capturing video or photo in water. The underwater mode uses the volume and power buttons to take photos or videos, with a routine to blow water out of the port when you exit.

The results are good, and obviously depend on how clear the water you’re shooting in is. The river near our dam provided some good options – but I’d love to hit the rockpools at a beach to really see what it can do.

Battery and Charging

To put it bluntly, even on a budget phone OPPO have simply nailed battery and charging on theOPPO Reno15 F. The phone comes with a massive 6,500mAh battery and supports 80W SuperVOOC fast charging.

The 6,500mAh battery just lasts. After using it for a full two days, I sat with the phone on 1% for an hour while I ran benchmarks, surfed the web and played games just trying to run the battery down and it wouldn’t go. 

The Charging side is similarly fast, though with the larger battery it does take a little longer than other OPPO phones I’ve used – but it’s still miles faster than the majority of the competition. How fast? A full charge in just over an hour.

There isn’t any wireless charging on the OPPO Reno15F, but it’s about the only thing ‘missing’ in terms of power and battery with the trade-off being super-fast wired charging – which I’m ok with.

Software

Android and Updates

Out of the box, the Reno15 F comes with Android 16 running OPPO’s ColorOS 16 over the top. 

OPPO says the phone will receive five major OS updates and six years of Security Maintenance Releases (SMR) – which will be delivered quarterly.

The system comes with the November 2025 security patch installed, and if you check, the February 2026 update is ready to download via Over-The-Air (OTA) update.

ColorOS16 and AI

ColorOS 16 is based on Android 16, so you get a lot of the features like streamlined notifications, and hints of Material Expressive 3, though OPPO’s  design elements take precedence with a more translucent UI which also brings Android 16’s blurred backgrounds. 

OPPO builds on the improved Android 16 rendering and performance improvements with the Luminous Rendering Engine offering silky smooth performance across the device, including the ability to snap fast photos and more. 

As I get a little older, and the glasses get a bit stronger – I have to call out the option to stretch icons making them quite large and hard to miss, which I love for the camera app and you may too for your favourite app.

All your favourite features like the Edge Panel, floating island are back, and you can use their O-Connect platform to connect to your laptop/desktop to easily transfer files and more.

In terms of AI, OPPO has integrated Gemini into ColorOS, with the ability to access OPPO’s built-in Clock, Calendar and Notes apps. Gemini can also bring you personalised responses based on your AI MindSpace – an option you can switch on in ColorOS that you can record screen content using a three-finger gesture, letting you save things like articles, to-do lists, events and loads more.

You can also access Circle to Search, and all the photo editing functions in the Google Photos app which comes pre-installed. 

Bloatware

While the Android and ColorOS 16 mix is great, there is one part that OPPO really needs to work on: Bloatware.

When you first load up the phone, you’ll see a number off games and apps pre-installed. The list of apps pre-installed all seem to come from the OPPO ‘App Market’ which is also installed alongside Google Play. 

The usual app suspects are there: LinkedIn and TikTok, but there’s also shopping apps: Amazon, Temu and AliExpress, as well as CapCut alongside a host of games including Bridge Race, Solitaire, Get Color, WoW and more. 

You can uninstall the apps – but it’s frustrating that you have to do so. OPPO, you’re better than this.

Final Thoughts

The OPPO Reno15 F is a solid choice for a mid-range phone. At 9 the performance and long lasting battery, backed up by a good camera system that takes advantage of the IP69 dust and water resistance to offer an underwater mode. 

The Reno15 F standout for me though is the 6,500mAh battery that can last days rather than hours. 

On standby without any use, you can leave the phone for days on end before picking it up and using it almost where you left off. Then the ultra-fast SuperVOOC charging caps it off, making even the lack of wireless charging an almost non-existent concern.

OPPO has even upped the game on the software side with ColorOS 16 a fast, and smooth experience. You also get five years of OS updates and quarterly SMR updates for six. The bloatware is a concern, though only briefly as you can uninstall it.

There is a lot of competition at this end of the range, with the Nothing Phone 3a a strong contender alongside the Galaxy A36 and even OPPO’s previous Reno13 F offers great hardware and at a competitive price.

If you want one of the largest batteries at this end of the market though, the Reno15 F wins hands down. 

You can check the OPPO Reno15 F out at  JB Hi-Fi, Officeworks, Big W, Harvey Norman, The Good Guys and OPPO Australia’s Online Store.

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