5-hour Energy (regular) has more caffeine than Bubbl'r antioxidant sparkling water on both counts: 200mg per 1.93 oz shot against 69mg per 12 oz can, and about 104mg per fluid ounce against 6. The serving sizes differ, so the table below shows both ways of counting.
Bubbl'r antioxidant sparkling water vs 5-hour Energy (regular): the numbers
| Bubbl'r antioxidant sparkling water | 5-hour Energy (regular) | |
|---|---|---|
| Caffeine per serving | 69mg per 12 oz can | 200mg per 1.93 oz shot |
| Caffeine per fl oz | 5.8mg | 103.6mg |
| Servings to reach 400mg (FDA context) | 5.8 | 2.0 |
Sources: Bubbl'r antioxidant sparkling water's figure is verified in our Bubbl'r antioxidant sparkling water caffeine guide against Caffeine Informer (source); 5-hour Energy (regular)'s figure is verified in our 5-hour Energy (regular) guide against 5-hour Energy facts page (source).
The concentration gap is the striking part: 5-hour Energy (regular) packs roughly 18 times the caffeine per ounce. Sipping speed matters at that density; a 1.93 oz shot finished in minutes hits differently than the same milligrams spread over a slow cup.
Which one should you pick?
Pick Bubbl'r antioxidant sparkling water when you want the lighter dose or a slower ramp, and 5-hour Energy (regular) when you actually need the bigger hit and know your tolerance. If you are stacking either with other caffeinated drinks through the day, run the math against the 400mg reference rather than guessing.
For context, the FDA cites 400mg of caffeine a day as an amount generally not associated with negative effects in healthy adults. Tolerance and health vary, so treat these numbers as information, not advice.
Related reading
- Bubbl'r antioxidant sparkling water: the full caffeine guide
- 5-hour Energy (regular): the full caffeine guide
- The verified caffeine database
- Every drink compared: the comparisons index
- Compare any two of 120+ drinks
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Gear from this guide
FAQ
Does Bubbl'r antioxidant sparkling water or 5-hour Energy (regular) have more caffeine? 5-hour Energy (regular): 200mg per 1.93 oz shot versus 69mg per 12 oz can for Bubbl'r antioxidant sparkling water.
Which is stronger per ounce? 5-hour Energy (regular), at about 103.6mg per fluid ounce versus 5.8mg for Bubbl'r antioxidant sparkling water.
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