Comparison guide
Panasonic NN-ST34NB vs Panasonic Cyclonic Inverter NN-SN98JS: which should you choose?
Panasonic NN-ST34NB and Panasonic Cyclonic Inverter NN-SN98JS compared under one framework. Decision axes: Judge defrost and reheat speed, center-to-edge evenness, usable dish capacity, clarity of frequent controls, power use relative to output, cavity cleaning and odor care, lock and overheat protection, and price. Includes price context and category-specific tradeoffs.
Published: 2026-08-16 · Updated: 2026-08-16
Microwaves verdict
Upgrade for specific needs. The products share a category but prioritize different strengths. The figures below use the same weighting model and stored representative configurations; confirm the configuration and price on the merchant page before buying.
- Panasonic NN-ST34NB: A roomy solo microwave with 25L capacity, 900W output, five power levels, and ten auto menus.
- Panasonic Cyclonic Inverter NN-SN98JS: A large 2.2-cu.ft microwave with 1,250W Cyclonic Wave Inverter power, 20 auto menus, and sensor reheat.
- Upgrade recommendation: 57 / 100
- Data completeness: 100%
Choosing between Panasonic NN-ST34NB and Panasonic Cyclonic Inverter NN-SN98JS starts with the real use case and the problem to solve, not with which product is newer. Use context: Start with the most frequent daily task and largest vessel across frozen-food defrosting, reheating rice or soup, drinks, family platters, and grill or convection cooking. Decision axes: Judge defrost and reheat speed, center-to-edge evenness, usable dish capacity, clarity of frequent controls, power use relative to output, cavity cleaning and odor care, lock and overheat protection, and price. This guide applies one calculation model to stored representative configurations while keeping the category-specific decision order visible.
Core specifications on one baseline
| Item | Panasonic NN-ST34NB | Panasonic Cyclonic Inverter NN-SN98JS | Delta |
|---|---|---|---|
| Heating performance | 92 score | 100 score | +8.7% |
| Heating evenness | 90 score | 100 score | +11.1% |
| Controls | 88 score | 94 score | +6.8% |
| Capacity | 96 score | 100 score | +4.2% |
| Energy efficiency | 82 score | 90 score | +9.8% |
| Cleaning | 84 score | 92 score | +9.5% |
| Value | 91 score | 86 score | -5.5% |
| Capacity | 25 L | 62.3 L | +149.2% |
| Microwave output | 900 W | 1250 W | +38.9% |
| Power consumption | 1330 W | 1460 W | +9.8% |
| Turntable | 288 mm | 419 mm | +45.5% |
| Automatic menus | 10 | 20 | +100% |
| Grill | No | No | Same |
| Convection | No | No | Same |
| Width | 472 mm | 606 mm | +28.4% |
| Depth | 351 mm | 493 mm | +40.5% |
| Chipset | Not applicable | Not applicable | Same |
| Color | Black | Stainless Steel | Different |
| Connectivity | Standalone countertop appliance | Standalone countertop appliance | Same |
| Lineup | panasonic-solo-microwave | panasonic-solo-microwave | Same |
| Region | KR | KR | Same |
| Model code | NN-ST34NB | NN-SN98JS | Different |
Heating performance
The heating performance score is 92.0 for Panasonic NN-ST34NB and 100.0 for Panasonic Cyclonic Inverter NN-SN98JS. Panasonic Cyclonic Inverter NN-SN98JS leads this dimension. It is a relative index combining not only rated microwave output but time to target temperature and overheat control for defrosting, rice, and soup on one baseline. Read the underlying specification rows, source completeness, and exact selling configuration before treating the lead as decisive. Similar averages can hide different weak points, so a small point gap matters less than whether the product removes a concrete problem under your normal usage conditions.
Heating evenness
The heating evenness score is 90.0 for Panasonic NN-ST34NB and 100.0 for Panasonic Cyclonic Inverter NN-SN98JS. Panasonic Cyclonic Inverter NN-SN98JS leads this dimension. It is a relative index combining center, edge, top, and bottom temperature variance in the same vessel, and defrosting without cooked spots or remaining ice on one baseline. Read the underlying specification rows, source completeness, and exact selling configuration before treating the lead as decisive. Similar averages can hide different weak points, so a small point gap matters less than whether the product removes a concrete problem under your normal usage conditions.
Controls
The controls score is 88.0 for Panasonic NN-ST34NB and 94.0 for Panasonic Cyclonic Inverter NN-SN98JS. Panasonic Cyclonic Inverter NN-SN98JS leads this dimension. It is a relative index combining button, dial and display clarity, power and time steps, one-touch operation, preset accuracy, lock, and mute on one baseline. Read the underlying specification rows, source completeness, and exact selling configuration before treating the lead as decisive. Similar averages can hide different weak points, so a small point gap matters less than whether the product removes a concrete problem under your normal usage conditions.
Capacity
The capacity score is 96.0 for Panasonic NN-ST34NB and 100.0 for Panasonic Cyclonic Inverter NN-SN98JS. Panasonic Cyclonic Inverter NN-SN98JS leads this dimension. It is a relative index combining usable dish capacity determined by cavity width, height, depth, turntable diameter, and door design rather than liters alone on one baseline. Read the underlying specification rows, source completeness, and exact selling configuration before treating the lead as decisive. Similar averages can hide different weak points, so a small point gap matters less than whether the product removes a concrete problem under your normal usage conditions.
Energy efficiency
The energy efficiency score is 82.0 for Panasonic NN-ST34NB and 90.0 for Panasonic Cyclonic Inverter NN-SN98JS. Panasonic Cyclonic Inverter NN-SN98JS leads this dimension. It is a relative index combining energy use relative to heating output, time to target temperature, standby power, and cooling delays during repeated use on one baseline. Read the underlying specification rows, source completeness, and exact selling configuration before treating the lead as decisive. Similar averages can hide different weak points, so a small point gap matters less than whether the product removes a concrete problem under your normal usage conditions.
Cleaning
The cleaning score is 84.0 for Panasonic NN-ST34NB and 92.0 for Panasonic Cyclonic Inverter NN-SN98JS. Panasonic Cyclonic Inverter NN-SN98JS leads this dimension. It is a relative index combining interior coating and seams, removable turntable and support, steam or deodorizing functions, and actual steps to remove splatter and odor on one baseline. Read the underlying specification rows, source completeness, and exact selling configuration before treating the lead as decisive. Similar averages can hide different weak points, so a small point gap matters less than whether the product removes a concrete problem under your normal usage conditions.
Value
The value score is 91.0 for Panasonic NN-ST34NB and 86.0 for Panasonic Cyclonic Inverter NN-SN98JS. Panasonic NN-ST34NB leads this dimension. It is a relative index combining overall use value combining heating, evenness, capacity, controls and warranty with stand, electrical setup, cookware, and energy cost on one baseline. Read the underlying specification rows, source completeness, and exact selling configuration before treating the lead as decisive. Similar averages can hide different weak points, so a small point gap matters less than whether the product removes a concrete problem under your normal usage conditions.
Who should choose Panasonic NN-ST34NB
Panasonic NN-ST34NB is the stronger fit when its leading dimensions match your primary use. Configuration checks: Verify exterior and door clearance, usable cavity dimensions, capacity, microwave output and power draw, turntable or flatbed, inverter, power levels, sensors and presets, grill or convection, voltage, grounding, and ventilation clearance. Then ask whether the product removes a concrete problem with the device you already own. If the gap is small and there is no real pain point, waiting for a price drop or a change in workload can be more rational than upgrading for novelty alone.
Who should choose Panasonic Cyclonic Inverter NN-SN98JS
Panasonic Cyclonic Inverter NN-SN98JS is the better fit when more of its strengths overlap your priorities and its weaker dimensions remain acceptable. Switching costs: Include microwave-safe vessels, covers and shelves, a suitable dedicated outlet rather than an underspecified power strip, stand and ventilation space, disposal, replacement grill racks, turntable or odor-care parts, and electricity. A higher total can still deliver lower practical value when that burden is large, so compare the score lead and switching cost on the same baseline.
How to read price and purchase availability
Neither product currently has an approved purchase link whose product name and configuration match the catalog, so no merchant link is shown. AsKrs does not guess a destination; this guide provides specifications and decision criteria until an exact listing is verified.
- Panasonic NN-ST34NB · No verified purchase link currently available
- Panasonic Cyclonic Inverter NN-SN98JS · No verified purchase link currently available
Final decision checklist
- Use context: Start with the most frequent daily task and largest vessel across frozen-food defrosting, reheating rice or soup, drinks, family platters, and grill or convection cooking.
- Configuration checks: Verify exterior and door clearance, usable cavity dimensions, capacity, microwave output and power draw, turntable or flatbed, inverter, power levels, sensors and presets, grill or convection, voltage, grounding, and ventilation clearance.
- Switching costs: Include microwave-safe vessels, covers and shelves, a suitable dedicated outlet rather than an underspecified power strip, stand and ventilation space, disposal, replacement grill racks, turntable or odor-care parts, and electricity.
- When the score gap is small, identify the concrete problem the change will solve.
- Recheck the seller, delivery, return terms, condition, and current price at checkout.
Scope and limits of this comparison
This comparison is a structured decision aid built from published specifications and stored representative configurations. Scope and limits: Heating results vary with food mass, moisture, starting temperature, vessel shape, and placement; sensor programs and noise vary by environment, and advertised volume does not guarantee usable dish diameter. The scores are relative indicators for setting priorities within one category, not an absolute quality ranking. When a new configuration or verified specification becomes available, the catalog and its comparison pages are regenerated together.
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