The Best Mobile Slots of 2017

Do you prefer mobile slots over other casino games? At SmartphoneCasinos.co.uk, we review the best and newest slot games for UK players in 2017. We are regularly updating our list so check back often to not miss out on thrilling new games and special bonus offers.

Best Slot Casinos UK

Payout 97%
Bonus £1000
Player Rating 4.9/5
About Betway
  • Claim £1000 Welcome Bonus
  • 500+ high quality games
  • Accepts PayPal
  • Excellent mobile casino
Payout 1h+
Bonus £1000
Player Rating 4.7/5
Payout 24h
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Player Rating 4.5/5
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Slot Games in Mobile Casinos

The first slot machine was invented by Charles Frey in New York back in 1899. Today, slots are the most popular casino game and integral part of both brick-and-mortar and online casinos. While low stakes with high potential winnings are the main reasons for the popularity of mobile slots in the UK, gameplay and progressive jackpots are just as attractive to casino players.

Due to its popularity game providers have developed a huge variety of mobile slots, which can make it difficult to pick the best one to play on. To make this choice easier, we made it our mission to test all slot games, old and new, thoroughly and rank them based on the following criteria:

  • Best odds and highest payouts
  • Highest (progressive) jackpots
  • Popularity & gameplay

As always, we only recommend online casinos that are fully certified, offer various payment methods for pay-in/payout and use cutting edge security mechanisms for your safety.

How Do Slot Machines Work?

Have you ever played at a fruit machine in your local pub or betting shop around the corner? Well, the good news is that there is almost no difference between physical and online slot machines. Just click on a real money slot in your online casino of choice and your screen, desktop or smartphone, will turn into a virtual fruit machine.

Now, you might be used to play three reels at physical machines. Since there are no mechanical constraints when developing a video game, online slots often display five reels, which expands the number of possibilities and increases odds to as high as 300 million to 1. High jackpots are one of the main reasons gamblers like to play slots online.

To start your adventure, you will have to select the amount of “lines” you want to play. Online casinos often encourage players to play multiple lines to increase the chance of winning with each spin. It makes sense to adopt this strategy as it allows you to win by hitting symbols across several patterns such as bottom left to top right. However, due to the higher likelihood to win it also means that you will have to wager more in the first place. Ultimately, the number of lines you play per spin will depend on your budget.

Free Spins in Mobile Slots

Online slots is a much faster game than Blackjack or Roulette, and you might feel that your money is just ebbing away when going through a phase of not hitting any winning symbol sequence. Luckily, game developers thought about this and introduced the idea of “free spins.” With bonus games, online casinos give you back spins rather than money to prolong your gameplay and increase the chance of hitting the jackpot further down the line or at least win back your losses. Free spins have been proven to be a great feature of mobile slots and are the #1 reason for the popularity of this casino game.

Tips and Tricks

With the invention of the first fruit machine in 1899, slot players have been trying to “beat the house”. Bad news first: No strategy guarantees you to win when playing online slots or any other casino game. However, the good news is that there are ways to increase your chances to win big. Below are three strategies to try out when playing at online casinos.

Progressive betting: A popular system where the casino player starts with the lowest bet per pay line and increases the wager every 50 spins. If no free games or big wins are awarded during the first 50 spins, raising the bet will increase potential winnings and compensate for any previous investment. However, there is always the chance that you won't win anything for a little while so make sure to have enough budget for at least 100 spins when adopting this strategy.

Slots with a high payout percentage: This is one of the most overlooked criteria when playing mobile slots. RTP (Return to Player) calculates how much the machine keeps and pays out *over time. *Most online slots have a 90% RTP which means that for every 100 GBP invested the machine pays out 90 GBP on average. The best machines pay out more than 95%, which is what we are looking for when reviewing and recommending slot games.

Pay slots with high jackpots: Don't be shy, aim high! Big jackpots indicate two important things: First, it means that many casino players play and vouch for the mobile slot because otherwise, they would move on to the next better option. Second, huge jackpots signal that there hasn't been a winner for a while. Online casinos tend to payout between 95% and 98% of all deposits, which includes jackpots, and they are actively looking for winners because it's their business model. Therefore, don't hold back when you see high potential winnings as it puts you in a better position.

Slot Games on iOS and Android

iOS and Android Logo

We often get asked whether we recommend downloading mobile casinos and its slot games to your iPhone/iPad or Android device as a native app instead of accessing them directly in your mobile browser. We did plenty of research and benchmark testing, and our conclusion is that apps from the app store have several disadvantages.

  • Long installation process: As you probably know, the installation process of apps can be cumbersome. You always need to go to the app store and follow several steps to even access the casino. Playing in-browser is easy as logging in on the casino's website.
  • Fewer mobile slots: Since storage on smartphones is limited, mobile casinos tend to only come with a limited selection of slots and other casino games. Each time you want to play a slot on your mobile that is not part of the pre-selection, you will have to download the game separately.
  • Push notifications: While it's great to get notified about bonus offers, native apps often send notifications about rather unimportant updates. When playing in-browser, you won't receive alerts unless you specifically opt-in.
Payout 1-2 days
Bonus £1000
Player Rating 10/10
About Betway
  • Claim £1000 Welcome Bonus
  • 500+ high quality games
  • Accepts PayPal
  • Excellent mobile casino

What does in-browser mean? It simply means to go straight to the online casino's website on your smartphone. For example, instead of downloading the Betway iOS app, just head to https://www.betway.com and sign up in your browser. Upon successful registration, you are immediately getting redirected to the lobby from which you can access all mobile slots and other casino games. No downloads required!