SLF Electrolyte Comparison · 2026
Ultima Replenisher Electrolyte Mix
Everyday Hydration · Travel · Keto & Low-Carb
Check Price at WalmartRead full review ↗
Waterboy Hydration Electrolyte Drink Mix
Endurance Athletes · Everyday Hydration · Exercise & Workouts
Check Price at WalmartRead full review ↗Ultima Replenisher Electrolyte Mix
Best overall data score for this matchup based on formula, value, rating, and intended use.
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At a Glance
A quick side-by-side look at nutrition, value, and overall performance.
| Feature | Ultima Replenisher Electrolyte Mix | Waterboy Hydration Electrolyte Drink Mix | 🏆 Edge |
|---|---|---|---|
| Sodium | 55 mg | 550 mg | Waterboy Hydration Electrolyte Drink Mix |
| Potassium | 250 mg | 140 mg | Ultima Replenisher Electrolyte Mix |
| Magnesium | 100 mg | 20 mg | Ultima Replenisher Electrolyte Mix |
| Sugar | 0.0 g | 0.0 g | Tie |
| Calories | 0 | 0 | Tie |
| Sweetener | Organic Stevia Leaf Extract | Organic Stevia Leaf Extract | Preference |
| Cost per serving | $0.56 | $1.42 | Ultima Replenisher Electrolyte Mix |
| SLF rating | ★★★★★4.7/5 | ★★★★★4.7/5 | Tie |
Ozark Trail 2L Hydration Pack
A lightweight 2L hydration pack with breathable padding, an adjustable sternum strap and reflective detailing for running, hiking, cycling and outdoor training.
Functional Ingredients
Additional active or performance-oriented ingredients recorded in the SLF database.
Ultima Replenisher Electrolyte Mix
- MagnesiumVitamin CZincElectrolyte BlendTrace Minerals
Ultima Replenisher is a strong zero-sugar, lighter-sodium choice for everyday hydration, low-sodium diets, keto, general wellness, but it is less compelling for heavy endurance…
Waterboy Hydration Electrolyte Drink Mix
- DHM (Dihydromyricetin)Ginger RootPrickly PearL-TheanineElectrolyte Blend
Waterboy Daily is a strong zero-sugar, performance-ready choice for everyday hydration, travel, moderate exercise, hot weather, but it is less compelling for people needing…
Key Differences
The most meaningful data-backed differences in this matchup.
Waterboy Hydration Electrolyte Drink Mix
Why it matters: Higher sodium can better replace larger sweat losses during prolonged exercise or heat.
Ultima Replenisher Electrolyte Mix
Why it matters: A lower cost per serving can make frequent use more practical.
Ultima Replenisher Electrolyte Mix
Why it matters: Potassium supports fluid balance and normal muscle function.
Who Should Choose Each Product?
Use these guidelines to find the best fit for your hydration needs and lifestyle.
Choose Ultima Replenisher Electrolyte Mix if…
- Everyday Hydration
- Travel
- Keto & Low-Carb
- Low Sodium Diets
- General Wellness
- Wellness
- Teens
Ultima Replenisher is a strong zero-sugar, lighter-sodium choice for everyday hydration, low-sodium diets, keto, general wellness, but it is less compelling for heavy endurance athletes needing very high sodium replacement.
Choose Waterboy Hydration Electrolyte Drink Mix if…
- Endurance Athletes
- Everyday Hydration
- Exercise & Workouts
- Recovery
- Travel
- Keto & Low-Carb
- Moderate Exercise
- Hot Weather
Waterboy Daily is a strong zero-sugar, performance-ready choice for everyday hydration, travel, moderate exercise, hot weather, but it is less compelling for people needing very high sodium replacement after prolonged endurance events.
Pros and Considerations
Ultima Replenisher Electrolyte Mix
✓ Strengths
- Moderate sodium level suits everyday hydration needs
- Sugar-free formula
- Provides meaningful potassium
- Includes a useful amount of magnesium
- Competitive cost per serving
● Keep in Mind
- Taste and electrolyte strength may not suit every preference
Waterboy Hydration Electrolyte Drink Mix
✓ Strengths
- Substantial sodium supports exercise and hot-weather hydration
- Sugar-free formula
- Fits keto and low-carbohydrate lifestyles
● Keep in Mind
- Taste and electrolyte strength may not suit every preference
Ultima Replenisher Electrolyte Mix
SLF scoring considers nutrition, formula, price, certifications, intended use, and value.
Why it earns the edge
- Moderate sodium level suits everyday hydration needs
- Sugar-free formula
- Provides meaningful potassium
- Includes a useful amount of magnesium
Choose Waterboy Hydration Electrolyte Drink Mix instead if you:
- Endurance Athletes
- Everyday Hydration
- Exercise & Workouts
- Recovery
Choose Your Electrolyte
Shop the product that best fits your needs. Amazon is shown first when available, with a direct brand option as the fallback.
Ultima Replenisher Electrolyte Mix
Check Price at Walmart Waterboy Hydration Electrolyte Drink Mix
Check Price at WalmartFind the electrolyte that fits your needs
Explore the full database by activity, sodium level, sugar preference, goals, budget, and retailer.
Frequently Asked Questions
Data-backed answers based on the current SLF product records.
Which has more sodium?
Waterboy Hydration Electrolyte Drink Mix contains 550 mg of sodium per serving, compared with 55 mg. Higher sodium may be more useful when replacing larger sweat losses during prolonged exercise or hot conditions.
Which has less sugar?
Tie has less sugar at 0.0 g per serving, versus 0.0 g. This may matter for people limiting added sugar.
Which is less expensive per serving?
Ultima Replenisher Electrolyte Mix is currently less expensive at $0.56 per serving, compared with $1.42. Pricing can change by retailer and package size.
What functional ingredients does each product include?
Ultima Replenisher Electrolyte Mix lists MagnesiumVitamin CZincElectrolyte BlendTrace Minerals. Waterboy Hydration Electrolyte Drink Mix lists DHM (Dihydromyricetin)Ginger RootPrickly PearL-TheanineElectrolyte Blend. Functional ingredients supplement the core electrolyte profile but do not automatically make one product better for every use.
Which product is better overall?
Ultima Replenisher Electrolyte Mix earns the higher SLF comparison score based on the available formula, value, rating, and intended-use data. Waterboy Hydration Electrolyte Drink Mix may still be the better fit when its specific use cases align more closely with your needs.
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Nutrition facts, pricing, and availability can change. Verify the current label before purchasing. This comparison is informational and is not medical advice.