Prices verified May 28 · Always confirm at the retailer before buying.
The Sun Joe TJ604E wins for most gardens — its 13.5-amp motor justifies the $2.50 premium over the TJ603E. Both tillers share the same 16-inch width and 8-inch depth, so the choice comes down to power versus price.
The Verdict
Winner
Sun Joe TJ604E
Sun Joe Corded Electric Garden Tiller & Cultivator TJ604E vs Sun Joe Corded Electric Garden Tiller & Cultivator TJ603E, side by side
Pros:
- 13.5-amp motor for tough soil
- Folding handle for easy storage
- 2-year warranty included
Cons (honest weight):
- Heavier at 27 lbs
- Corded limits range
Pros:
- Lower price at $139.99
- Same tilling width as TJ604E
- Folding handle for storage
Cons (honest weight):
- Less power for tough soil
- Corded limits mobility
Where each one wins
8 dimensions scored head-to-head. Sun Joe takes 1; Sun Joe takes 1.
| Dimension | Sun Joe Corded Electric Garden Tiller & Cultivator TJ604E | Sun Joe Corded Electric Garden Tiller & Cultivator TJ603E | Winner |
|---|---|---|---|
| Motor PowerTJ604E's extra 1.5 amps power through tough soil; TJ603E works well in loose beds. | 13.5 amps | 12 amps | Sun Joe |
| Tilling WidthBoth cover the same swath per pass, so area per pass is identical. | 16 in | 16 in | Tie |
| Tilling DepthBoth reach the same 8-inch depth, enough for most garden beds. | 8 in | 8 in | Tie |
| WeightSame weight; maneuverability and storage are identical. | 27.1 lbs | 27.1 lbs | Tie |
| PriceTJ603E is $2.50 cheaper, but the margin is negligible for most buyers. | $142.49 | $139.99 | Sun Joe |
| Customer RatingBoth are highly rated; buyer satisfaction is nearly equal. | 4.6 stars | 4.6 stars | Tie |
| Prime EligibilityNeither is Prime eligible; both ship from third-party sellers. | No | No | Tie |
| WarrantyBoth include a standard 2-year manufacturer warranty. | 2 years | 2 years | Tie |
| Overall | 1 win | 1 win | Tie |
Motor Power — TJ604E Takes the Crown
The TJ604E's 13.5-amp motor outmuscles the TJ603E's 12-amp unit. Amps translate directly to torque for breaking compacted soil. The extra 1.5 amps let the TJ604E chew through clay and rocky ground with fewer passes.
Video reviewers confirm the power advantage matters. Consumer Buddy's top pick was the TJ604, noting its motor handles larger gardens that would strain a 12-amp model. Tools Log also highlighted the TJ604E's ability to tackle hard soil.
For gardeners with heavy soil, the power premium is worth the $2.50 extra. If you only work soft, amended beds, the TJ603E's 12-amp motor is adequate and saves a few dollars.
Tilling Width — A Dead Heat
Both models offer a 16-inch tilling width. This is the standard for home garden tillers, covering a comfortable path per pass. You'll finish a 20-foot bed in about 15 passes with either machine.
Width doesn't tip the scales here. Both tillers will cover the same area in the same time. Choose based on power or price instead.
Tilling Depth — Equal at 8 Inches
Both tillers reach 8 inches deep. This is plenty for most vegetable gardens and flower beds. Deeper tilling is rarely needed for annual planting.
Depth is identical, so soil preparation speed is the same. No advantage for either model on this key spec.
Weight — Both 27 Pounds
Both machines tip the scales at 27.1 pounds. This is moderate for electric tillers — heavy enough to stay grounded but light enough to maneuver in tight spaces.
Weight is a tie. Neither model is easier to push or store than the other. Both have folding handles for compact storage.
Price — TJ603E Saves $2.50
The TJ603E is $2.50 cheaper. At $139.99 vs $142.49, the price gap is almost negligible. It's the cheapest entry point for a reliable corded tiller.
For most buyers, $2.50 isn't a deciding factor. The TJ604E's power advantage easily justifies the tiny premium. But if every dollar counts, the TJ603E delivers the same width and depth for less.
Customer Ratings — Both Excellent at 4.6
Both models earn 4.6 out of 5 stars. Across 28,000+ reviews, buyers praise reliability, ease of use, and value. Complaints are rare and usually about cord length or weight.
Ratings are a tie. You can trust either machine based on verified buyer satisfaction. Neither has a clear edge in quality.Expect delivery in 5–8 business days from Amazon.
Shipping is a tie. Both incur the same delivery logistics. No advantage for either model in getting it to your door quickly.
Warranty — Both 2 Years
Both come with a 2-year manufacturer warranty. Sun Joe covers defects and workmanship for two years from purchase. Register online to extend coverage.
Warranty is a tie. Same protection for both machines. No reason to choose one over the other here.
Which should you buy?
| Your situation | Pick | Why |
|---|---|---|
| Large garden (over 500 sq ft) | Sun Joe Corded Electric Garden Tiller & Cultivator TJ604E | TJ604E's stronger motor covers more ground without bogging down. |
| Small garden (under 500 sq ft) | Sun Joe Corded Electric Garden Tiller & Cultivator TJ603E | TJ603E's 12-amp motor is plenty for light beds; saves $2.50. |
| Tough clay soil | Sun Joe Corded Electric Garden Tiller & Cultivator TJ604E | Extra 1.5 amps let the TJ604E break up compacted clay that stalls the TJ603E. |
| Loose loamy soil | Sun Joe Corded Electric Garden Tiller & Cultivator TJ603E | TJ603E handles soft soil easily; no need for the extra power. |
| Budget maximizer | Sun Joe Corded Electric Garden Tiller & Cultivator TJ603E | TJ603E is the cheapest option while still offering the same width and depth. |
| Power max seeker | Sun Joe Corded Electric Garden Tiller & Cultivator TJ604E | TJ604E's 13.5-amp motor is the most powerful corded tiller in this price range. |
TJ604E's stronger motor covers more ground without bogging down.
TJ603E's 12-amp motor is plenty for light beds; saves $2.50.
Extra 1.5 amps let the TJ604E break up compacted clay that stalls the TJ603E.
TJ603E handles soft soil easily; no need for the extra power.
TJ603E is the cheapest option while still offering the same width and depth.
TJ604E's 13.5-amp motor is the most powerful corded tiller in this price range.
What if neither is right?
LawnMaster TE1318M
$139.98
18-inch tilling width with 13.5-amp motor at a similar price.
Alloyman 20V Cordless Tiller
$139.99
Cordless freedom with two batteries, but narrower 9-inch tilling width.
Mantis 4-Cycle Tiller (Gas)
$489.99
Honda engine for serious power, but expensive for small gardens.
Frequently Asked Questions
Sun Joe TJ604E vs TJ603E which is better?
For most gardeners, the TJ604E is better due to its 13.5-amp motor that handles tough soil and larger beds. The TJ603E is a solid choice for small gardens with light soil where saving $2.50 matters.
Is the TJ604E worth the extra $2.50?
Yes, for anyone with clay or rocky soil. The extra 1.5 amps prevent bogging and reduce pass count. For light soil only, the TJ603E's 12-amp motor is sufficient.
Are there cordless alternatives?
Yes. The Alloyman 20V cordless tiller offers battery freedom but only tills 9 inches wide. It's ideal for small raised beds. For more power, the Sun Joe corded models are better.
Which tiller is best for clay soil?
The TJ604E. Its 13.5-amp motor delivers higher torque to break up compacted clay. The TJ603E with 12 amps will struggle in heavy clay.
Do both tillers have the same warranty?
Yes, both include a 2-year manufacturer warranty. Register online to extend coverage. Sun Joe's support is well-regarded by users.
We compared both tillers across 8 dimensions using manufacturer specs, 28,421 verified Amazon reviews, and independent video analysis from Consumer Buddy and Tools Log. Prices were checked from Amazon on May 24, 2026.
Who wrote this and where's the data from?
Mubboo Editorial Team — independent US-market consumer research. Picks reflect editorial consensus from 2 models, 28,421+ verified buyer reviews, and 3 video review sources.