Summit SM903BSA1 Compact Microwave 0.7 Cu Ft
- Capacity: 0.7 cu ft
- Wattage: 700 watts
- Heating Method: Microwave Radiation
- Installation Type: Countertop
Last refreshed Jun 13, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.
A small, well-equipped microwave whose built-in outlet allocator solves a real single-outlet problem, useful wherever counter and plug space are both scarce.
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ASIN: B0CJ3Z45DVModel: SM903BSA1Category: Countertop Microwave Ovens
Overview
The Summit SM903BSA1 is a compact 0.7 cu ft countertop microwave in black, sized at just under 18 inches wide, with a rear power allocator that lets a second appliance share its outlet.
The allocator is the unusual feature here: it accepts a 2 or 3-prong cord from something like a mini fridge or lamp and temporarily cuts power to that device while the microwave runs, so one wall outlet can serve two appliances. Everything else is standard compact microwave fare, one-touch settings, defrost, cook by weight, and an eco mode that dims the display.
- 0.7 cu ft capacity in a 17.88 inch wide footprint
- Built-in allocator for 2 or 3-prong pass-through power
- Multi-stage cooking combines several functions
- Eco mode display dimming and muted alerts
Who it's for
Good for a dorm, office, or small kitchenette where outlet access is limited and counter space is tight. Not a fit for anyone wanting a larger capacity microwave for regular family cooking.
Pros and cons
- Rear allocator lets one outlet run the microwave and another appliance
- Removable glass turntable and white interior are easy to wipe down
- Eco mode dims the display and can mute end-of-cycle alerts
- One-touch presets and cook-by-weight cover common reheating tasks
- 0.7 cu ft capacity limits it to small plates and single servings
- No published rating or review data to confirm long-term reliability
Performance notes
The digital panel handles one-touch presets for pizza, popcorn, and reheating alongside multi-stage cooking that chains different functions in sequence, and the interior is a plain white finish with a removable glass turntable for cleaning.
Specifications
| Brand | Summit Appliance |
|---|---|
| Model | SM903BSA1 |
| Dimensions & fit | |
| Item Weight | 35 poundshigher than 68% of 32 countertop microwave ovens |
| Capacity & performance | |
| Capacity | 0.7 cu ftlower than 77% of 94 countertop microwave ovens |
| Heating Method | Microwave Radiation |
| Defrost System Type | Auto Defrost |
| Power & efficiency | |
| Wattage | 700 wattslower than 81% of 79 countertop microwave ovens |
| Power Consumption | 700 wattslower than 86% of 64 countertop microwave ovens |
| Energy Consumption | 700 wattslower than 85% of 67 countertop microwave ovens |
| Voltage | 115 voltslower than 90% of 73 countertop microwave ovens |
| Construction & materials | |
| Inner Material | Metal |
| Material Type | Metal |
| Color | Black |
| Compatibility & installation | |
| Installation Type | Countertop |
| Included components | |
| Unit Count | 1 |
| Included Components | Turntable |
| Other details | |
| Control Type | Touch |
| Timer Function | Timer Function Available |
| Frequency | 0 MHz |
| Recommended Uses For Product | Indoor |
| Item Type Name | Microwave |
Closest rivals on specs
Frequently asked questions
What does the allocator on the Summit SM903BSA1 do
It is a rear outlet that accepts a 2 or 3-prong plug from another device, such as a mini fridge or lamp, and temporarily shuts that device off while the microwave is running.
What is the capacity of the SM903BSA1
It has a 0.7 cu ft (20 L) interior capacity.
Does the SM903BSA1 have a removable turntable
Yes, it has a removable glass turntable for easier cleaning.