Skip to main content

Digital Trends may earn a commission when you buy through links on our site. Why trust us?

Blu F91 5G hands-on review: Budget price, solid experience

Today’s Android smartphone landscape is as complicated as it is crowded. From top-tier stalwarts like Google and Samsung to overseas newcomers like Xiaomi and Poco, phone manufacturers cover the gamut and appeal to every taste. But if there’s one positive thing to come out of the near-paralyzing number of choices, it’s this: The best cheap Android smartphones are getting really good.

The Blu F91 5G is a prime example of the confounding nature of this side of the market. On the one hand, Blu is just not a brand that has much market share, let alone cachet. To be fair, Blu is a brand headquartered out of Miami and has some experience manufacturing niche phones under different brands (including the rugged, budget-friendly Doogee name).

But on the other hand, when a budget brand like this wades into the mid-tier market with a 5G offering, it’s typically trying to appeal to people with limited money to spend who are willing to cut corners on some features. But where the Blu F91 cuts its corners is what interested me the most when I started testing it.

Hand holding a Blu F91 5G with a road going off in the background
Blu F91 5G Image used with permission by copyright holder

Design and display: A bright and bold combo

Blu stands for “Bold Like Us,” and marketing platitudes aside, that adage comes through quite strongly in the F91. The phone comes in one colorway, fittingly called “Oceanic Blue.” Upon inspection, the back of the phone is a pleasant, sapphire-like shade. The tendency for budget Androids to go for bolder, more effervescent colors is certainly not new, but I really like how this phone looks.

The display, on the other hand, is not as simple of a concept. On paper, Blu reports that the F91 features a 6.8-inch, full HD Infinity Dot display with 369 pixels per inch. From a resolution standpoint, the screen is pretty solid. Because it is an IPS display, you won’t find any inky blacks here, and on my unit, the backlighting showed plenty of bleed around the edges.

But what I just couldn’t wrap my head around was the actual experience of looking at the display. There was just something odd about the color management on the panel. Right out of the box, the display was set to max brightness, but even at halfway down the brightness slider, I found the display to be astonishingly bright—much brighter than I’m used to for this class of phone. But that came with the perhaps unintentional side effect of blowing out the colors. This was great for watching YouTube videos and scrolling Instagram, but I don’t think it would be great for color accuracy or long-term business use.

A hand holding a Blu F91 smartphone taking a picture of a living room.
Blu F91 5G Image used with permission by copyright holder

The hardware: Fast, clean, and picture-friendly

With most of the budget-friendly Android phones on the market, the manufacturer has to make a decision: Where do you cut back to keep the price low? Usually there are trade-offs at play, and with the Blu F91, that is certainly true — though there aren’t nearly as many trade-offs as you might think. During my time with the Blu F91, I was continually impressed with just how many ways in which this phone delivers.

While the jury is out on whether a super-bright, non-color-accurate screen is serviceable, it did really accentuate how fast and stable the processor is. Under the hood, the F91 is running an ARM-based MediaTek Dimensity 810 Octa-Core chip. While I don’t usually love using benchmarks from third-party apps as a corollary, Blu’s reviewer’s guide for the phone actually highlighted some pretty impressive comparison numbers. But in my day-to-day operation of the phone, it felt much snappier than even many of the mid-tier Android’s I’ve tried — even from heavyweights like Moto and Samsung.

Then there’s the camera. Alongside the processor and the display resolution, the camera is clearly an area Blu has focused a lot of the budget toward. With a 48MP, Samsung-manufactured GM1 sensor, plus additional 5MP wide-angle and 2MP macro lens setups, there’s quite the arsenal on this reasonably priced phone. In practice, the photos are, well, decent! They aren’t award-winning, mostly because you won’t find any high-end software to run a comb through the pics (the portrait mode’s woefully kitschy bokeh effect is particularly egregious, and the macro option is really hit-or-miss depending on your subject). But the high megapixel count and the solid lens options yielded plenty of reasonable shots in lots of different lighting.

This is Blu’s first official foray into the 5G space, a category in which we’ve been seeing more and more budget phones. I live in a semi-suburban area with some decently large swaths of rural area, and with my T-Mobile sim card, I was able to get the same performance as I’d get with my Verizon-compatible 5G phones. It is important to note that coverage depends on your area, and which flavor of 5G your area is in range of. Because the Blu F91 5G is a GSM phone, it won’t be compatible with certain U.S. carriers like Verizon, but you will get connectivity with AT&T, T-Mobile, and Metro — and you can take advantage of dual-sim functionality for international use cases.

A woman holding a Blu F91 5G for a phone call
Blu F91 5G Image used with permission by copyright holder

The drawbacks: Build quality, battery, and quirks

Seeing as this is a sub-$300 phone, it isn’t all good news for the spec hunters. While I really love the color of the Oceanic Blu chassis, and I actually don’t mind the feel of plastic in my hands, it’s clear to me that over time, you’ll put some wear on this phone.

Then there’s the battery. Blu says you’ll get “up to three days” out of the 5,000 mAh battery in this phone. While that is certainly a massive battery, my average-to-heavy use of the phone put that total closer to 36 hours at best. To be fair, any phone that can get you through more than a day of use on a single charge will be more than enough for most users. But I don’t love it when a phone manufacturer advertises outlandish battery totals, especially when so many people buy a phone based on battery life alone.

There are also little performance quirks. I said I liked the processing power, and I stand by that. But the 128GB capacity just feels a little low here (especially when you can technically record 4K video on the phone). What’s more is that the expandable SD card slot only accommodates up to 256GB of additional storage. That’s a good amount of space, but it should have been just as easy to allow 500GB or a TB into the party.

One thing to keep in mind with a budget Android phone is that there are B-list trade-offs you’re making — aka the features you didn’t think you’d notice, but that show their rough edges in typical day-to-day use. For instance, the “haptic feedback” when typing is little more than a clunky burst of vibration (a far cry from Apple’s award-winning haptic engine). This is something I always turn off, but it’s an area that shows the budget price on a phone like this.

There are other little things — while the phone claims it can accommodate 18-watt wired charging and 10W wireless charging, I never seemed to get what I would consider a fast-charging performance out of the phone. I also am skeptical about how long this phone will hold up over time. MediaTek has gained a ton of steam as an system on a chip manufacturer in recent years, but in my hands-on testing, I tend to find better performance and better support with Qualcomm chips (especially on the flagship side). But your mileage may vary.

Blu F91 and accessories arranged on a table.
Blu F91 5G Image used with permission by copyright holder

The extras: Smoke, mirrors, and fun little touches

One thing most people tend to forget about budget Android phones (if they’re like me, at least) is that there are a lot of little extras you get, even if you are missing out on some fundamentals. Take the accessories pack that comes standard with the F91. Not only do you get an 18W charging brick in the box — a refreshing inclusion when flagships leave out any charging brick nowadays — but you also get a high-quality USB-C cable, a tempered glass screen protector, and a (surprisingly great!) TPU case. This is really nice because it allows you to unbox your phone, set it up, and keep it protected right when you get it.

I was also happy to see a full suite of biometric options. There’s a side-mounted fingerprint reader that’s really snappy, and a rudimentary face unlock option for those who prefer a touch-free experience. And here’s a real kicker: This phone comes with a headphone jack! And you even get a pair of pretty-solid wired earbuds right in the box. While the headphone jack is becoming less and less necessary, it’s still something I like to see on a phone that could have easily been left off.

Price and availability

The Blu F91 5G will be available unlocked later this month for a launch price of $299. You can buy it on Amazon or on Blu’s website. It will be compatible with Blu’s typical slate of GSM carriers including AT&T and T-Mobile.

Conclusion: Pretty good!

All in all, the Blu F91 5G is a more-than-serviceable phone if it were in the $400 to 500 range, but at sub-$300, it is pretty impressive. While there are certainly trade-offs, there aren’t as many as I’ve seen in other phones at this price point. Solid performance, a nice design, decent cameras, and a solid screen resolution all make for an Android phone that punches just a bit above its class.

Editors' Recommendations

Jason Schneider
Jason Schneider is a northeast US-based writer, editor, and horror movie enthusiast with more than 10 years of experience. He…
This new MediaTek chip is about to bring 5G to a lot more devices
MediaTek M60 5G RedCap Modem.

One of the biggest promises of 5G technology isn’t merely faster performance but rather the ability to power a far more connected world — a global network where every device can get online from just about anywhere.

That’s the vision behind MediaTek’s new M60 5G modem and T300 chip, which aim to be small and efficient enough to bring 5G to wearables, internet-of-things (IoT) devices, and other electronics that benefit from reliable internet connectivity but don’t require the massive speed and bandwidth of modern laptops and smartphones.
Reduced capability for greater efficiency

Read more
Have an Android phone? You can get unlimited 5G service for free
A person holding the Google Pixel 8 showing the screen.

One of the great things about eSIM technology is how easy it is to get a new line up and running on a compatible smartphone. Gone are the days when you needed to find a carrier store or wait for a new physical SIM card to arrive in the mail. Now, you can go through the entire process from the comfort of your own home and be up and running with a new phone plan in under five minutes.

This is especially great when dealing with prepaid carriers, and one such company that’s been leaning heavily into eSIM technology is Visible. It’s embraced eSIM not just to make it easy for folks to sign up, but also to let prospective customers take the service for a spin before committing to it.

Read more
T-Mobile still has the fastest 5G, but its rivals are catching up
T-Mobile smartphone.

For most of 2023, we’ve seen median 5G speeds among the big three carriers remain fairly stable, leading us to believe that things were beginning to reach a plateau. However, it now seems that this may only be true at the very top end of the 5G speed race.

Today, Ookla released its latest market research on 5G speeds for the third quarter of 2023, and it’s an interesting mix of surprising and not-so-surprising developments in the 5G market.

Read more